Install MPIO software. Xen hypervisor: Assign Virtual Disk to a Virtual Machine by Siddharth Rana · Published July 20, 2014 · Updated August 4, 2017 Dealing with our daily admin tasks we face lot of requests where we need to assign virtual disks or additional disks to Virtual Machines running on Xen hypervisor. To the operating system, multi-pathing drivers and system tools, a LUN presented through NPIV has all the characteristics of a LUN presented through a dedicated HBA. same thing when issuing a LIP and rescan manually:. Configuring LUN Masking Using the LUN Masking Wizard 7-21 Configuring Fibre Channel Devices. Map Disk Block devices on a Linux host back to the SAN Lun There was a question posted in Oracle-L - How can one map Disk Devices (On Linux) back to the SAN LUNs? This is a no brainer on Solaris virtue of persistent binding capabilities on the HBA along with hard-coding the luns in sd. To see the newly added LUNs, just run the ql-scan-lun. Coraid offers a range of HBAs with support for a variety of operating systems. Target and Device Representation In the ESXi context, the term target identifies a single storage unit that a host can access. For example, Figure 13 shows that LUN 17 is masked to the HBA. x기반에서는 /proc/scsi 밑에 lpfc,qla2xx등의 파일이 있어서 정보를 확인 할 수 있다. Single Port FC HBA Card,PCIE 2. iSCSI HBAs or iSOEs are used when the additional performance enhancement justifies the additional expense of using an HBA for iSCSI, rather than using a software-based iSCSI client (initiator). 5 vSphere Training Step by Step. iSOE may be implemented with additional services such as TCP offload engine (TOE) to further reduce host server CPU usage. 2 The total requests for a LUN is greater than it maximum queue depth (32+(14*LUN’s data drive quantity)). How to find hba and add new lun in redhat linux in REDHAT - on 12:00 PM - 8 comments We have following utilities in linux to find the hba related information. The Index corresponds to what the Windows Disk Management displays. 1 for ucs b200? In esxi I type esxcli system module parameters -m list it shows ~ # esxcli system module parameters list -m fnic Name Type Value Description -----. Resetting the HBA. A second rescan is necessary to put in place the real HLU LUN 0. Short for logical unit number, LUN is a unique identifier used on a SCSI bus to distinguish between devices that share the same bus. This post will be updated with both information on the LSI SAS 2308 based RAID controllers as well as the different OEM models commonly found in the marketplace. So if you have a per device (per LUN) queue depth of 32 you can support 128 LUN's at full queue depth, without queueing in the HBA. A SCSI controller or Fibre Channel HBA typically offers the possibility of scanning for storage/LUNs from its BIOS. Note: If all Emulex HBAs on the host are connected to the XtremIO storage, replace lpfc0_lun_queue_depth with lpfc_lun_queue_depth. Obtain the HBA device drivers for your version of Windows. The post discusses few of the most commonly used methods. The VPORT is a virtual HBA that appears to the FC fabric as a physical HBA. After you have finished with the zoning, you need to map the LUN device(s) to the WWPN. 0 Host Running on a Cisco UCS B200 Blade. Citrix Hypervisor servers support Fibre Channel SANs through Emulex or QLogic host bus adapters (HBAs). For multiple instances of an Emulex HBA, run the following command: a esxcfg-module -s "lpfc0_lun_queue_depth=16 lpfc1_lun_queue_depth=16" lpfcdd_7xx The LUN queue depth for lpfc0 and the LUN queue depth for lpfc1 is set to 16. Scanning LUN on Solaris and Mount Here are the steps to scanning LUN's on Solaris and Mount all the devices that are visible through that HBA port or for a. @Xalorous so there is no additional roles or features to enable for the detection of the FC LUNs other then to install the hba drivers and presenting the hba wwn to the storage - right ? if so, what do you mean by "the other way is more powerful" and it involves the iSCSI initiator - can i use iscsi to connect to a FC LUN ???. The HPE Smart Array Gen10 controllers are supported by the HPE Smart Storage Battery, which supports multiple devices and is sold separately. The storage administrator needs this information to configure visibility from the HBA ports of the PEPP to the LUN on the external storage device where you will be creating the partition boot volume. 2 Host Bus Adapter (HBA) Texas Memory Systems, an IBM Company recommends using dual-ported Host Bus Adapters (HBAs) when possible. Typically iSCSI is implemented in a SAN (Storage Area Network) to allow servers to access a large store of hard drive space. I think other LSI cards should be concerned. For example, in SVC 5. Once you see the new lun, make sure that multiple FC paths are enabled to that. You have several ways of doing this: 1. Presenting a LUN over Fibre Channel from a NetApp FAS 3240 Array to an ESXi 5. There are several commands to determine the WWN of a Fibre Channel (FC) HBA and their status (online/offline). x) then you can support only 64 LUN's at full queue depth. 3 was released on October 26 during Oracle OpenWorld. So the Qlogic qlc driver is reporting LUN 300 exceeded maximum LUN 256. Queue depth is the number of I/O requests (SCSI commands) that can be queued at one time on a storage controller. "Bus" is used in preference to "channel" in the description below. Attacks on FC SANs: HBA ¥ LUN Masking — LUN masking is the process of hiding or revealing parts of a storage disk (specific LUNs) to a client node ¥ LUN masking creates subsets of storage within the SAN virtual pool and allowing only designated servers to access the storage subsets. S1-A is an alias for its WWPN which connects to Fabric A, and S1-B is an alias for its WWPN which connects to Fabric A. This is a guest post by Andy Grant. Matching the HBA ports with Disk Controllers. It makes absolute sense that once the I/O is in the Ontap layer they don't have LUN queues, as there is no LUN construct analagous to block-centric array. We try to show the most important features of this protocol. It was self-released on February 5, 2019. In the above command the the hyphens represent controller,channel,lun, so - - - indicates all controllers, all channels and all luns should be scanned. Read this KB: 1267. If its a storage LUN then its a masking and zoning at storage level to WWN of server. Any idea what I might have been done wrong ? I haven't attached my VMWare host server to the FC switch yet, but should that make a difference ? Shouldn't the switch have light on the port connected to the FreeNAS server and report "connected" ?. A LUN (Logical Unit Number) is an identifier for a disk volume in a storage array target. Each I/O request from the host's initiator HBA to the storage controller's target adapter consumes a queue entry. On the server there is 2 HBA card installed each with two ports. The post discusses few of the most commonly used methods. If still you are not able to see the new FC/SAN LUNS ,then reboot the server and try. HP FC1242SR 4Gb PCIe DC Host Bus Adapter HP 81Q PCIe Fibre Channel Host Bus Adapter HP 82Q 8Gb Dual Port PCIe Fibre Channel Host Bus Adapter QLogic QMH2562 8Gb Fibre Channel Host Bus Adapter for c-Class BladeSystem; QLogic QMH2462 4Gb Fibre Channel Host Bus Adapter for c-Class BladeSystem. Worldwide Names consist of 16 hexadecimal digits grouped as 8 pairs. nPar: nPar is hard partition/physical partition of a single computer into multiple partitions, each having separate hardware components. fcinfo hba-port -l |grep HBA. Linux, when expanding an existing disc Assuming you know the device name of the disc you have expanded (eg /dev/sda) then you can simply issue the following command to force the rereading. The output information is the same as for verbose mode in space-separated text format. 3 GA and above. The unified maxView management tools and drivers across the Microsemi HBA, RAID, and expander solutions enable easy manageability across the entire product line. Applicable to clustered Data ONTAP 8. VMware ESX has built-in support for Fibre Channel multipathing, which enables network redundancy. Refer to your HBA vendor-specific documentation for instructions. iSCSI storage requires initiator software. S1-A is an alias for its WWPN which connects to Fabric A, and S1-B is an alias for its WWPN which connects to Fabric A. 4 kernel drivers) or qla2xxx (2. I seem to think (and a quick check on some of our servers seems to support) that the LUN numbering is per HBA/Subsystem port pairing. I recommend combining this script with Send-HtmlEmail function. When you exceed the queue depth on target, you should expect performance degradation. Fibre Channel host bus adapters A Fibre Channel HBA enables connectivity and data transfer between devices in an FC SAN. On the server there is 2 HBA card installed each with two ports. Bug 234398 - CRM1214186 - RHEL4-U4, Emulex HBA cannot see CRM1214186 - RHEL4-U4, Emulex HBA cannot see host 1 channel 0 id 0 lun660 has a LUN larger than. If several "other FC SCSI Disk Drive" lines are seen the, array drivers are not correctly installed. Now the Lun got disappeared in the server. Now you can try to find out which LUN is missing on which node the hard way through the vSphere client. The location of a bottleneck depends upon many factors, including LUN's sharing common I/O buffers and a LUN mapped to a device with few controllers. 6 running on an HP Blade. For more Max & Mins see @Virten's post: 'VMware vSphere ESX and vCenter Configuration Maximums' So what exactly does this mean; for example if a host consists of two FC HBA's with HBA-0 connecting to Fabric-A and HBA-1 connecting to FabricB, as per the following. The host boots from the first LUN visible to the HBA that is discovered in the fabric. The procedure involves enabling the QLogic HBA BIOS, enabling the selectable boot, and selecting the boot LUN. First you have to add FC HBA to your host and show it to operating system. The LEDs on the FC HBA is on (solid light) but my switch is reporting "Port Status = No Light". To check how many HBA's are installed and which are all having connectivity # esxcli storage core adapter list. (Do not try this in critical servers unless you are confident that multipathing is correctly configured) List the connected HBA. Second LUN from SAN (LUN ID 1) would be hdisk3. Select Configure Boot Devices. Conditions: This happens only in case of LUNs configured on UCS-M2-HWRAID and UCSC-C3X60-HBA. LUN Masking is implemented primarily at the HBA (Host Bus Adapater) level. HP FC1242SR 4Gb PCIe DC Host Bus Adapter HP 81Q PCIe Fibre Channel Host Bus Adapter HP 82Q 8Gb Dual Port PCIe Fibre Channel Host Bus Adapter QLogic QMH2562 8Gb Fibre Channel Host Bus Adapter for c-Class BladeSystem; QLogic QMH2462 4Gb Fibre Channel Host Bus Adapter for c-Class BladeSystem. I am Pranay Jha, bring along a total of 11+ years of extensive experience with me in Information Technology sector for organizations from small business to large enterprises, wherein my current assignment I am associated with IBM as a Technical Solution Architect for Virtualization platform. BTW, the lun range is 0. (For more information, refer solution emc99467) 12. Confirming UCS HBA Connectivity. iSCSI HBAs or iSOEs are used when the additional performance enhancement justifies the additional expense of using an HBA for iSCSI, rather than using a software-based iSCSI client (initiator). I recommend combining this script with Send-HtmlEmail function. You can also try to re-present the lun again and try to remove it again following the article. The procedure involves enabling the QLogic HBA BIOS, enabling the selectable boot, and selecting the boot LUN. If no LUN is available this might be because the WWPN is not correctly in your Zoning, or not mapped on the Storage. SchedNumReqOutstanding (which is a per-device setting, which. Thank you, Asad. c) is a multipathing method that allows each LinuxIO port to manage access states and path attributes using an explict method, or implicitly using target-side configFS operations by a target administrator. qla2xxx indicates that it is using the Q-Logic HBA card. 1, create a host with physical HBA WWPNs, and create another host for VM with virtual HBA WWPNs. Finding WWN's on Windows Server 2012 Using PowerShell With a single command you can retrieve WWN's on Windows Server 2012 R2 using PowerShell. With Pure Storage the WWNs are automatically discovered if zoned properly to the fabric. BTW, the lun range is 0. If you only have a single LUN and a single path you should see only one device. Method 2: Initialize the boot LUN prior to running setup. 0001 ===== How to load/view HBA and associated SAN software. (After this host can not connect lun untll configuring SVC) Unmap lun from source storage and map it to SVC. Per Microsoft Driver Development Kit (DDK), Microsoft storport. Hardware HBA SRs connect to Fibre Channel (FC), Fibre Channel over Ethernet (FCoE) or shared Serial Attached SCSI (SAS) LUNs via an HBA. It can be used to refer to an entire physical disk, or a subset of a larger physical disk or disk volume. The lsscsi command can also show the relationship between a device's primary node name, its SCSI generic (sg) node name and its kernel name. 1 for ucs b200? In esxi I type esxcli system module parameters -m list it shows ~ # esxcli system module parameters list -m fnic Name Type Value Description -----. Compellent recommends to set HBA max queue depth to 255 but this queue depth can be used just for single VM running on single LUN (disk). So while we could go out and say that Unbreakable Enterprise Kernel (UEK) supports N LUN s it is really a question for the HBA vendors to answer. PowerCLI: Show HBA Path Status 2018-07-20 2011-10-01 by Andrew Sullivan When you have a lot of hosts, with a lot of LUNs, it can be difficult to keep abreast of the status of the paths for them. Powermt management utility helps you manage I/O paths from the server to the EMC storage device. HBA Port WWN: 210000e08b1c2395. In computer hardware, a host controller, host adapter, or host bus adapter (HBA) connects a computer, which acts as the host system, to other network and storage devices. 462575 Log opened 2019-06-04T23:59:53. BTW, the lun range is 0. According to the QLogic Support, the maximum SCSI queue depth is set at 32 PER LUN by the Windows environment. Then make fiber connections and switch zoning. Run the following command to view the current LUN count:. You also have to consider the queue depths of your HBA. How to identify the HBA cards/ports and WWN in Linux – The Geek Diary. Check and list luns attached to HBA in RHEL6 This article will show you the mapping from physical HBA card to luns, I use SAN as example below, in general, it's also applys to any other devices whichever use sysfs, for example direct sas connect. Applicable to clustered Data ONTAP 8. symmir 463 symntctl 485 symoptmz 494 sympart 507 sympd 512 symqos 518 symrcopy 535 symrdb 549 symrdf 571 symrecover 632 symreplicate 654 symreturn 683 symrslv 685. I just know that critical to accessing Fibre Channel LUNs is that you have your SAN network zoned to allow the WWPN from your HBA to talk to the WWPN of the Fibre Channel controllers, and then on the controller you need to mask the LUN to expose it to the WWN of your server. Open the PowerShell command and type:. Inquire HBA-Port Connected Storage Here, I will give a demo of how to inquire about all the HBA ports available in the SUN Solaris system and all the remote storage connected through those HBA ports. For this discussion a host bus adapter (HBA) is the hardware that provides access to storage devices, be that the SATA controller on the motherboard, a RAID controller, a Fibre Channel interface or their virtual equivalents provided in software by a hypervisor. Click OK to register the HBA, and return to the Initiators view. In fact, over 80% of HBAs sold are dual-port or quad-port and configured for active-standby fail-over mode. Some HBA vendors allow setting HBA and LUN level Queue Depths, while some allow HBA level setting only. Typically, when a LUN or Volume is presented to ESX this is done to all the hosts in a cluster. Remove each FC SCSI device (with rmdev -d -l ) and check the driver installation. A 16Gb FC HBA purchased today is backward compatible with 8 Gb and 4 Gb storage networks and will protect future investments. Calculation of Max LUN Supported in ESX Server Posted by craig - on February 20th, 2009 in Tips , Virtualization | 5 Comments » I found my ESX servers could not recover the 65th LUNs that I tried to present to it and myself did log a support call and still pending the reply from VMware. fcinfo remote-port -sl -p 210000e08b0c5518 > 210000e08b0c5518. Disks; cfgadm, fcinfo and LUN mapping on Solaris OK, so you have a Solaris 10 you'll need to provide him with the WWNs of the HBA ports in your server. As you can see I didn’t put any value, the storage system will auto assign the Host LUN ID with the next available (in this case it will be 0, since there is no LUN present in this Storage Group). 4 kernel drivers) or qla2xxx (2. The LEDs on the FC HBA is on (solid light) but my switch is reporting "Port Status = No Light". To view the WWPN information of a particular HBA port. The queue depth indicates the number of I/O requests that are “in flight”, that have been requested but not yet been acknowledged to have been completed when communicating with a SAN storage. Due to possible compromises at HBA level, LUN masking implemented at HBA level is more prone to attacks. Collect Current HBA information. Kind of like a mount point. Create host on SVC. In this short post I go through a few steps to quickly map back Fibre Channel (FC) Host Bus Adapter (HBA) World Wide Node Names (WWN)s with Solaris OS raw disk devices and the corresponding Logical Unit Number Identifiers (LUN Id) on the remote storage disk array. But when LUN masking is done at storage controller level, controller itself enforces all the grouping relations, its more secure and more or less as strong as zoning security. In computer hardware, a host controller, host adapter, or host bus adapter (HBA) connects a computer, which acts as the host system, to other network and storage devices. Note: If all Emulex HBAs on the host are connected to the XtremIO storage, replace lpfc0_lun_queue_depth with lpfc_lun_queue_depth. SCSI is a parallel interface that allows up to 16 devices to be connected along a single cable. Target and Device Representation In the ESXi context, the term target identifies a single storage unit that a host can access. Collect Current HBA information. Extracting WWN IDs and HBA Port Mappings from SCSI Disks under Linux: Abstract This note presents a technique to extract the unique Scsi id for each disk attached to a Linux-based server. BL460c + VC Flexfabric + iSCSI HBA not able to reach somes hosts Hi there, I have a new C7000 with two VC Flexfabric modules, connected to a Cisco 4500 at the core, and 8 BL460c G7 blades. Fibre Channel Protocol - 4 (FCP-4): FCP-4 defines the fouth generation Fibre Channel Protocol to be used to transport SCSI commands over the T11 Fibre Channel interface, 2010-11-09 Glossary Host Bus Adapter ( HBA ): provides the mechanism to connect Fibre Channel devices to processors and memory. Install the Qlogic HBA driver by using the command. LUN masking or LUN zoning: Which is a better fit for a storage-area network (SAN) fabric? LUN masking takes place at either the host bus adapter (HBA) or storage controller, and restricts the. Make sure that newly configured LUN’s are properly configured and mapped to correct HBA’s 2. 1Introduction ThisimplementationguideprovidestheinformationyouneedtoconfigureanHP3PARStoreServ StoragewithRedHatEnterpriseLinux(RHEL)4,RHEL5,RHEL6,andOracleLinux(OL. Spinning up the device at HBA 0, ID 8, Lun 0 Searching for device at HBA 0, ID 8, Lun 0 When i removed the jumper on my harddisk from ID 0 i get Spinning up the device at HBA 0, ID 9, Lun 0 Searching for device at HBA 0, ID 9, Lun When my he starts i can press CTRL-C to go to SCSI configuration Then i see the next thing:. cfgadm -o show_SCSI_LUN -al cfgadm -oshow_FCP_dev -al # configure command - not a show command cfgadm -c configure c# c# #Note: Some of the luxadm commandsrequire the devices to # be configured with cfgadmfirst. Method 1: Present the boot LUN on a single path Configure a single path to the boot LUN when installing Windows. Previous Post Configuring X-Server Display For Oracle Solaris 11 Next Post Solaris script to scan FiberChannel bus for new LUN Leave a Reply Cancel reply Your email address will not be published. Powermt management utility helps you manage I/O paths from the server to the EMC storage device. Openfiler FC SAN Target allows you to configure virtual block devices, and manage LUN masking for block device exports to SAN initiators. One solution is to use HBAs that support LUN mapping and will automatically re-assign the LUN IDs as appropriate. Access Disk Manager under "Computer Management" in "Server Manager" or in the command prompt with diskmgmt. # lspci | grep -i emulex 05:0d. x기반에서는 /proc/scsi 밑에 lpfc,qla2xx등의 파일이 있어서 정보를 확인 할 수 있다. Find HBA details with Get-WmiObject When setting up connectivity between SANs and hosts knowing the HBA information is important. grep –i QLGC /etc/path_to_instant. Adjust Queue Depth for QLogic, Emulex, and Brocade HBAs If you are not satisfied with the performance of your hardware bus adapters (HBAs), change the maximum queue depth on your ESXi host. Up to a 15 tebibyte (TiB) LUN. Then i saw the following messages display on my screen. QLogic Fibre Channel HBAs support up to 255 outstanding commands per LUN,and Emulex HBAs support up to 128. VMware’s File System – VMFS inherently supports a cluster mode where more than one host can see the same LUN/Volumes. (Host Bus Adapter) An HBA is used to connect a host system to network storage. Compellent recommends to set HBA max queue depth to 255 but this queue depth can be used just for single VM running on single LUN (disk). replacing an HBA card on Sun Sparc server-solaris 10 There was problem with one of the port of HBA port on the dual port HBA card as shown below: Lun had single. This quick howto document shows how to remove a fibre channel LUN under multipathd(8) control from a running RedHat Enterprise Linux 6 machine. LUN (Logical Unit Number) Masking is an authorization process that makes a LUN available to some hosts and unavailable to other hosts. If it is possible to present the physical drives on the DAEs to the HBA, also Blancco should be able to see them. Dynamically rescan LUN’s on SLES Posted on February 24th, 2009 ashinn 6 comments I’m sure this is kids play to most people, but I’ve just not done much SAN work with Linux. After you have finished with the zoning, you need to map the LUN device(s) to the WWPN. Emulex-branded Fibre Channel HBA Product Guide Emulex Gen 6 FC HBAs are able to provide full IOPS performance– 1. For example, if lpfc1 Emulex HBA is connected to XtremIO, replace lpfc0_lun_queue_depth with lpfc1_lun_queue_depth. 0 Host Running on a Cisco UCS B200 Blade. The queue depth indicates the number of I/O requests that are “in flight”, that have been requested but not yet been acknowledged to have been completed when communicating with a SAN storage. I have spoken to my HP Storage guy and he says everything appears ok on the SAN side, so I am not sure how to troubleshoot this from th. @Xalorous so there is no additional roles or features to enable for the detection of the FC LUNs other then to install the hba drivers and presenting the hba wwn to the storage - right ? if so, what do you mean by "the other way is more powerful" and it involves the iSCSI initiator - can i use iscsi to connect to a FC LUN ???. I have spoken to my HP Storage guy and he says everything appears ok on the SAN side, so I am not sure how to troubleshoot this from th. Servers with SAN storage connected with HBA adapter by using a FC GBIC of 2,4 or 8GB speed. This script creates a simple overview of all HBA WWPNs for each cluster. You don’t just have to worry about your maximum LUN queue depths. So while we could go out and say that Unbreakable Enterprise Kernel (UEK) supports N LUN s it is really a question for the HBA vendors to answer. 0 Fibre Channel: Emulex Corporation LP9802 Fibre Channel Host Adapter (rev 01) # # cat /sys/class/scsi_host/host0/fwrev. hi bro, 2 things to point out 1. This guide does not provide information about all the available options or a lot of conceptual background for the tasks. If you are still unable to see the new LUN/DISK, then, if you have multipathing enabled, you can try to reset the HBA. need to do LUN masking at qlogic HBA level. The LEDs on the FC HBA is on (solid light) but my switch is reporting "Port Status = No Light". To check how many HBA's are installed and which are all having connectivity # esxcli storage core adapter list. This kind of security is done on the SAN level and is based on the host HBA , i. Select Configure Boot Devices. 8 GB speed, NIC is NIC card for 10/100/1000 MB and CNA is Conversional NEtwork adapter. My interpretation of ALUA is that you can see any given LUN via both storage processors as active but only one of these storage processors "owns" the LUN and because of that there will be optimized and unoptimized paths. LUN - The LUN that is associated with the HBA Port. conf to connect) you'll have to search the system for pg_hba. Coraid offers a range of HBAs with support for a variety of operating systems. Please ask for more information if I am not clear. In our example the LUN named NPIV_AIX61 is mapped to the Host Group named VIOS1_NPIV, as shown in Figure 2-27. Check and list luns attached to HBA in RHEL6 This article will show you the mapping from physical HBA card to luns, I use SAN as example below, in general, it's also applys to any other devices whichever use sysfs, for example direct sas connect. @Xalorous so there is no additional roles or features to enable for the detection of the FC LUNs other then to install the hba drivers and presenting the hba wwn to the storage - right ? if so, what do you mean by "the other way is more powerful" and it involves the iSCSI initiator - can i use iscsi to connect to a FC LUN ???. A LUN is a single unit of storage. Method 1) To Find all HBA insterface on your system: lspci -nn | grep -i hba. To the operating system, multi-pathing drivers and system tools, a LUN presented through NPIV has all the characteristics of a LUN presented through a dedicated HBA. LUN queue depth with UCS, Hyper-V and HDS HUS110 (self. Depending on the environment, a LUN may refer to a subsection of a disk or a disk in its entirety. If you have resized the LUN on which an iSCSI or HBA SR is based, then use the following procedure to reflect the size change in XenServer: iSCSI SRs with software initiator Shut down all VMs on the SR. Once you have created logical drives or logical volumes, you can map each storage partition as one system drive (host ID/LUN). Kernel has a know hardware tree with it. Integrity SC11Xe PCIe SCSI. VMware’s File System – VMFS inherently supports a cluster mode where more than one host can see the same LUN/Volumes. LUN (Logical Unit Number) Masking is an authorization process that makes a LUN available to some hosts and unavailable to other hosts. Re: SLES 11 SP2 and iSCSI HBA On another note, a few months ago we went through on our SLES 11 SP1 servers and changed the devices to use symbolic links in fstab and /boot/grub/menu. I have spoken to my HP Storage guy and he says everything appears ok on the SAN side, so I am not sure how to troubleshoot this from th. In our example the LUN named NPIV_AIX61 is mapped to the Host Group named VIOS1_NPIV, as shown in Figure 2-27. In some cases LUN level erasure may be the preferred option. LUN masking explained Zoning and masking terms are often confused by those who just started working with SAN. You can change the mode of a specific HBA to either standby or active using this command. The LVM over hardware HBA type represents disks as VHDs on Logical Volumes within a Volume Group created on an HBA LUN that provides, for example, hardware-based iSCSI or FC support. I want to re-introduce the XENSERVER-03 SR HBA LUN to look the same as the XENSERVER-04 SR HBA LUN. The view that I want is something like this: LUN (on the server side like /dev/rdsk/) | WWN (from the server) | Paths (the paths that connect my hba wwn from the server to the hba's wwn of the storage). 10/11/2018; 10 minutes to read; In this article. 1; Install rpm's. If your server has two HBA cards connected to EMC SAN storage device, you can implement load-balancing, and fail-over on the HBA cards using the EMC PowerPath software. If it is possible to present the physical drives on the DAEs to the HBA, also Blancco should be able to see them. You have several ways of doing this: 1. QLogic Fibre Channel HBAs support up to 255 outstanding commands per LUN,and Emulex HBAs support up to 128. * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). iSCSI HBAs or iSOEs are used when the additional performance enhancement justifies the additional expense of using an HBA for iSCSI, rather than using a software-based iSCSI client (initiator). SCSI-4 Asymmetric Logical Unit Assignment (ALUA, target_core_alua. Will Server Vendors (who usually OEM the SAS/RAID/HBA products) keep maintaining their firmware? The Dell H310 is a “low-end shallow queue depth disk controller” but its also based on the LSI 2008 which appears to be “25 / 600 (firmware dependent!)” If Dell wanted – could they have pushed a Firmware out that improved queue depth to 600?. Select the correct boot devices within SMS, such as a DVD or a NIM Server. (Host Bus Adapter) An HBA is used to connect a host system to network storage. The queue depth indicates the number of I/O requests that are “in flight”, that have been requested but not yet been acknowledged to have been completed when communicating with a SAN storage. After you have finished with the zoning, you need to map the LUN device(s) to the WWPN. The post discusses few of the most commonly used methods. The following steps explain how to determine the HBA WWN on a Solaris host. In versions up to and including ESX 5. This supports both Live Migration of those VMs. 6 million IOPS, to a single-port, which is critical when using dual-port HBAs in an active-standby configuration. Minimum two FC paths required for SAN disks. Difference Between LUN Masking and LUN Mapping? What exactly is difference between LUN masking and LUN Mapping? I googled it for a while and my understanding is LUN Masking is assigning a LUN to particular group of hosts so that all the group members can see the LUN on their HBA. The problem come from VMware. Find HBA and WWN Information on Windows using WMI (Updated June 2015) Find the WWN Information in order to Map storage etc. x December 15, 2015 January 15, 2016 Paolo Lucchetti Dell / Storage / VMware In this post I just want to summarize the best practises need for configuring correctly vSphere 6. Please refer below article for what I am looking for. This article is in response to the post More Questions About Queues: LUN and HBA Queue Depth on ESX(i) Hosts. XenServer Storage Repository LUN Expansion on Xen Server 6. A logical unit number (LUN) is a unique identifier used on a SCSI channel that enables a host to differentiate between separate devices. Type WWPN yourwwpn lun targetid, where yourwwpn is the WWPN associated with the boot volume, lun is the associated LUN, and targetid is the associated. So the Qlogic qlc driver is reporting LUN 300 exceeded maximum LUN 256. If you can't connect (Pg isn't running, or you need to edit pg_hba. HPE StoreFabric 16Gb Host Bus Adapter The HPE StoreFabric 16Gb Host Bus Adapters are designed to support ProLiant Servers with PCI -Express I/O slots to connect to Hewlett Packard Enterprise Storage Arrays using the 16/8/4 Gb Fibre Channel protocol. This kind of security is done on the SAN level and is based on the host HBA , i. Visible down the iSCSI path. powermt display command (without any arguments), displays the available HBAs and their current status. It may be a SCSI or Fibre controller because both topologies can support more than eight LUNs. Scanning LUN on Solaris and Mount Here are the steps to scanning LUN's on Solaris and Mount all the devices that are visible through that HBA port or for a. I have spoken to my HP Storage guy and he says everything appears ok on the SAN side, so I am not sure how to troubleshoot this from the Citrix side. If your server has two HBA cards connected to EMC SAN storage device, you can implement load-balancing, and fail-over on the HBA cards using the EMC PowerPath software. Media server HBA port mode. 2 The total requests for a LUN is greater than it maximum queue depth (32+(14*LUN’s data drive quantity)). NOTE: Nagios XI customers should use the Customer Support forum to obtain expedited support. So if you have a per device (per LUN) queue depth of 32 you can support 128 LUN's at full queue depth, without queueing in the HBA. Characteristics of a LUN through NPIV. VMware's File System - VMFS inherently supports a cluster mode where more than one host can see the same LUN/Volumes. A LUN is a single unit of storage. There are several ways to access multipathing controls, and three different multipathing policies. Dell EMC Host Connectivity Guide for Linux P/N 300-003-865 REV 47 PUBLISHED: DECEMBER 2018. Media server HBA port number on which a device was discovered. I am learning. You can use the following commands to modify the properties. Calculation of Max LUN Supported in ESX Server Posted by craig - on February 20th, 2009 in Tips , Virtualization | 5 Comments » I found my ESX servers could not recover the 65th LUNs that I tried to present to it and myself did log a support call and still pending the reply from VMware. The LUN is available and is presented as "Supported" by the BIOS. The HBA successfully logged into the fabric and was able to see that a LUN of ID 0x00 is visible (line 9). I think other LSI cards should be concerned. Extracting WWN IDs and HBA Port Mappings from SCSI Disks under Linux: Abstract This note presents a technique to extract the unique Scsi id for each disk attached to a Linux-based server. hba_status_error_target_busy Executing the requested SCSI command would cause a SCSI overlapped command condition. This will give you the LUN ID, ISCSI ID, HBA, and Target ID. " Yes, you have twice the bandwidth to the array. "Bus" is used in preference to "channel" in the description below. 2 - Emulex HBA LUN Problem. HBA/Hirsch Bedner Associates creates inspired, brand-strengthening design experiences that evoke a distinct sense of place, while delighting the world's most discriminating travelers. Check and list luns attached to HBA in RHEL6 This article will show you the mapping from physical HBA card to luns, I use SAN as example below, in general, it's also applys to any other devices whichever use sysfs, for example direct sas connect. This causes the startup to hang 90 seconds at 1% 'vRDGW': No LUNs have appeared for Synthetic Fibre Channel HBA Fibre Channel Adapter (F5F8DD0B-5EF9-4958-9AF3-48FBF3A6C505). 4) Parse the identifiers. 0 with PowerPath /VE 5. In some cases LUN level erasure may be the preferred option. However, any one LUN can only access a single N_Port at any moment, while another LUN can access the alternate port or alternate controller. The lpfc_lun_queue_depth parameter is configured to 126 while we need 128 Use the following steps to resolve this issue: Check if /etc/modprobe. For example, if lpfc1 Emulex HBA is connected to XtremIO, replace lpfc0_lun_queue_depth with lpfc1_lun_queue_depth. The rescan and datastore detection are asynchronous processes. Typically all LUNS are masked to both HBA cards for load balancing. when I create a new LUN on my array (typically a snapshot of some existing LUN) and map it to my HBA, I can't get it recognized properly : rescan-scsi-bus -l -w -r actually detects something ( a generic /dev/sgXX device) however no block device is created ( /dev/sdXX). Using Disk Manager. As you can see, even though we have 8 paths to the storage array, we can see only 4 paths to each LUN. Check whether the HBA WWN 1000000000000001 is a member of any Initiator Group. We have Two HBA here from the above example (host0 and host1). com Authenticating. Find HBA and WWN Information on Windows using WMI (Updated June 2015) Find the WWN Information in order to Map storage etc. LUN and HBA Queue Depth on ESX(i) Hosts. luxadm -e port luxadm -e dump_map `HBA path from abovecommand'. Configure the host BIOS to make the boot LUN the first disk device in the boot order. (For more information, refer solution emc99467) 12. 8 GB speed, NIC is NIC card for 10/100/1000 MB and CNA is Conversional NEtwork adapter. Multipath connectivity is possible where multiple connection paths exist between a server and a storage unit (Logical Unit (LUN)) within a storage subsystem. conf to connect) you'll have to search the system for pg_hba. The LUN is available and is presented as "Supported" by the BIOS. You will also see references to WWPN (Worldwide Port Name) and WWNN (Worldwide Node Name). Presenting a LUN over Fibre Channel from a NetApp FAS 3240 Array to an ESXi 5. 0 - LUN will dissappear (press refresh) - Make LUN active again and rescan all HBA and VMFS on the host you have added as allowed to see and it will become active again. Such a card is also called an iSCSI HBA. Some identifiers might be actually related to the path between your HBA and the LUN, others might be related to the SCSI target. 0 Fibre Channel: Emulex Corporation LP9802 Fibre Channel Host Adapter (rev 01) # # cat /sys/class/scsi_host/host0/fwrev. After you have finished with the zoning, you need to map the LUN device(s) to the WWPN. Hi team, I would like to find out HBA/Device/LUN queue depth of ESX host using Power CLI and firmware details of HBA too. HBA Port WWN: 210000e08b1c2395. In a physical Fibre Channel SAN environment, LUN security is typically accomplished through a combination of LUN masking and zoning. As a result, the detection process for new data stores may complete before the detection process for new LUNs is complete.