Details
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Bug
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Resolution: Fixed
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Major
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None
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Lustre 1.8.6
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None
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RHEL 5.5 and Lustre 1.8.0.1
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2
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10544
Description
MDS1/2 are running and active/active cluster configuration. mgs resides on MDS1 and mdt resides on MDS2. Is this an OK way to do things or not? In the original architecture of the system Oracle stated this was supported, but the customer just found out from Tyian over at Oracle that this is not a supported configuration for the MDS devices.
As of last Thursday customer could see all raid devices by the OS, but for some reason OST11 just simply would not become available. That issue went away with their "bare metal" reboot of the system on Friday morning. What started however, we have yet to fix:
OST15 /dev/md41 resident on OSS4
From /var/log/messages
Ldisk-fs error (device md41): ldiskfs_check_descriptors: Block bitma p for group 0 not in group
This device is not mounting anymore to the OSS at the Operating System level. The raid device can be constructed, but Lustre will not mount it.
Customer contact for questions is tyler.s.wiegers@lmco.com