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SigmaAdmin
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February 15th, 2013 08:00
Format VNX Lun on Linux
Hello and thank you in advance for any assistance provided.
I have recently zoned and connected a Linux host to our VNX system. I've created a Storage Group, LUN, and installed ServerUtil on the Linux host. When running the ServerUtil utility, I can see the Virtual Disk that resides on the VNX however I am not sure what to do from here. In the past with other Storage Arrays, the Lun would show up when running fdisk -l and I could go from there, however this isn't the case here. The Virtual Disk is not present under fdisk even after rescanning the HBAs with the echo.... commands. Where do I go from here?
Thanks!
Rainer_EMC
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Posted February 15th, 2013 09:00
https://elabnavigator.emc.com/vault/config_guide/Linux.pdf
SigmaAdmin
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Posted February 15th, 2013 09:00
Thank you for your response. I have went through the guide but it pretty much stops once you are able to see the drives with ServerUtil, nothing regarding formatting the disk.
SigmaAdmin
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Posted February 15th, 2013 09:00
I guess I was hoping for another option other than a reboot. Is this a common requirement when adding a new disk on Linux?
Rainer_EMC
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Posted February 15th, 2013 09:00
It shouldnt require a reboot
Unfortunately different Linux systems use different ways to get a rescan done
Have you looked at the host connectivity guide for Linux (available through eLab).
Maybe that has some ideas ?
typical process for a brand new RHEL box in our shop:
1) install OS, install PowerPath, license PowerPath, configure filters in LVM.conf
2) present LUNs, reboot server
3) create aligned partitions (for RH4/5, RH6 partitions are aligned by default)
for future provisioning, use echo to discover new LUNs, verify they get claimed by PP and aligned if needed.
SigmaAdmin
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Posted February 15th, 2013 12:00
Update :: Restarting the system resolved my issue. Thank you for your assistance.
dynamox
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Posted February 15th, 2013 09:00
i have seen issues with RH4/5 during its initial configuration, after that you can rescan dynamically doing echo /sys/class/...