robert wild1709160729 Posted March 4, 2019 Share Posted March 4, 2019 hi all, i can see my fibre HBA card in the console of my xen server and they are host 7 and host 8, also i know what port names they are like so - ls /sys/class/fc_host/ host7 host8 [root@lon-p-xenserver01 ~]# cat /sys/class/fc_host/host7/port_name 0x50014380062e53ac [root@lon-p-xenserver01 ~]# cat /sys/class/fc_host/host8/port_name 0x50014380062e53ae and on my hitachi SAN i have created a volume, made a LUN on the volume and associated my host name ie my port name to the LUN so it should really see it back on my xen server when i rescan for LUNS i dont see my LUNS - [root@lon-p-xenserver01 ~]# echo "- - -" > /sys/class/scsi_host/host7/scan [root@lon-p-xenserver01 ~]# echo "- - -" > /sys/class/scsi_host/host8/scan [root@lon-p-xenserver01 ~]# cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD1001FALS-4 Rev: 3D06 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: Hitachi HUA72202 Rev: A3EA Type: Direct-Access ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: Hitachi HUA72202 Rev: A3EA Type: Direct-Access ANSI SCSI revision: 05 Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: Hitachi HUA72202 Rev: A3EA Type: Direct-Access ANSI SCSI revision: 05 Host: scsi6 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: BD-RE WH14NS40 Rev: 1.02 Type: CD-ROM ANSI SCSI revision: 00 Host: scsi6 Channel: 00 Id: 01 Lun: 00 Vendor: hp Model: BD-RE BH30L Rev: B633 Type: CD-ROM any help please cheers, rob Link to comment
Tobias Kreidl Posted March 5, 2019 Share Posted March 5, 2019 The storage device is aware of the XS hosts' WWNN values and permission was granted for the hosts to access the storage device? Link to comment
robert wild1709160729 Posted March 5, 2019 Author Share Posted March 5, 2019 Thanks Tobias, So aswell as giving my San my HBA wwpn's I also have to give it my xen server wwnn? Also do you think i should only give it my HBA's wwnn and not each wwpn's Link to comment
Tobias Kreidl Posted March 5, 2019 Share Posted March 5, 2019 Your FC controllers on your XenServer will have their own WWNNs. I don't recall ever having to deal with WWPNs, just WWNNs. I admit, it's been a number of years since I had any FC devices! See if this adds any help: https://discussions.citrix.com/topic/282584-adding-a-fibrechannel-hba-after-installing-xenserver/ -=Tobias Link to comment
robert wild1709160729 Posted March 5, 2019 Author Share Posted March 5, 2019 you know what i was doing everything right, looks like my FC HBA card isnt supported for xen server 7.6 its a ISP2532 and on the list http://hcl.xenserver.org/storagecontrollers/?storagecontrollersupport__version=14&vendor=48&features=1 Link to comment
Tobias Kreidl Posted March 5, 2019 Share Posted March 5, 2019 Just because it's not on the list doesn't necessarily mean it won't work; did it work in earlier XS releases? Also, you may need a driver update. Do you have Citrix support? If so, I'd open a case with them. -=Tobias Link to comment
robert wild1709160729 Posted March 5, 2019 Author Share Posted March 5, 2019 No citrix support I'm afraid I didnt have a previous xen installed Im afraid, I installed 7.6 Il try and update the driver via cli on the xen host and see if that works What is the Linux version, is it freebsd or centos7 Thanks Tobias for your help in this Link to comment
Tobias Kreidl Posted March 5, 2019 Share Posted March 5, 2019 XS 7.6 uses CentOS 7 with kernel version 4.4.0, I believe. Link to comment
robert wild1709160729 Posted March 6, 2019 Author Share Posted March 6, 2019 Good news, my storage ie SAN i can now see my wwpn/wwnn under hosts so a step in the right direction How big should I make the Luns ie is there a max size citrix xen can support ie 2tb or 30tb Link to comment
Alan Lantz Posted March 6, 2019 Share Posted March 6, 2019 I think you are going to only be limited by the storage array. I'm sure there is a limit, but its got to be crazy high. Doing a quick Google I ran across 8 ExaBytes. Don't know how accurate that is, but again, its going to be high. But, that being said, a lot of storage arrays will suggest you break your LUN's out into something a little more logical. Deduplication and compression may say to to keep some data on the same LUN. Keeping data with the same block size will as well. And it can be an organizational tool. Instead of one giant LUN having multiple LUN's can reduce outage if a LUN goes offline. --Alan-- Link to comment
Tobias Kreidl Posted March 6, 2019 Share Posted March 6, 2019 You can make the SR huge -- I think several TB, just each VDI (storage device per VM) cannot exceed 2 TB. -=Tobias Link to comment
Question
robert wild1709160729
hi all,
i can see my fibre HBA card in the console of my xen server and they are host 7 and host 8, also i know what port names they are like so -
ls /sys/class/fc_host/
host7 host8
[root@lon-p-xenserver01 ~]# cat /sys/class/fc_host/host7/port_name
0x50014380062e53ac
[root@lon-p-xenserver01 ~]# cat /sys/class/fc_host/host8/port_name
0x50014380062e53ae
and on my hitachi SAN i have created a volume, made a LUN on the volume and associated my host name ie my port name to the LUN so it should really see it
back on my xen server when i rescan for LUNS i dont see my LUNS -
[root@lon-p-xenserver01 ~]# echo "- - -" > /sys/class/scsi_host/host7/scan
[root@lon-p-xenserver01 ~]# echo "- - -" > /sys/class/scsi_host/host8/scan
[root@lon-p-xenserver01 ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: WDC WD1001FALS-4 Rev: 3D06
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: Hitachi HUA72202 Rev: A3EA
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: Hitachi HUA72202 Rev: A3EA
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: Hitachi HUA72202 Rev: A3EA
Type: Direct-Access ANSI SCSI revision: 05
Host: scsi6 Channel: 00 Id: 00 Lun: 00
Vendor: HL-DT-ST Model: BD-RE WH14NS40 Rev: 1.02
Type: CD-ROM ANSI SCSI revision: 00
Host: scsi6 Channel: 00 Id: 01 Lun: 00
Vendor: hp Model: BD-RE BH30L Rev: B633
Type: CD-ROM
any help please
cheers,
rob
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