I have a server running Ubuntu 16.04.5 (up-to-date). I recently purchased a LSI MegaRAID SAS 9286-8e (firmware 23.34.0-0019) attached to a HP SAS Expander (firmware 2.06, 2.10) with 15 drives attached. The RAID card, the HBA and 8 of the drives are brand new.
The drives are configured as single, independent RAID0 from the MegaRAID, for lack of better knowledge. I didn't figure out till months later how to configure them as JBOD from the CLI. I will probably reconfigure them all as JBOD in the future. The storage is configured as zfs RAID-Z with the 8 new drives.
The problem is, intermittently and often, the alarm goes off on the LSI MegaRAID and all drives go offline simultaneously. Seconds later the enclosure reattaches again. Minutes later the enclosure goes offline again, then reattaches. This happens over and over with no set period of time.
Troubleshooting I've tried...I've replaced the LSI MegaRAID SAS 9286-8e, tried two different HP SAS expander cards, tried HP SAS expander firmware 2.06 and 2.10, tried a Monoprice SAS SFF-8088 and a Tripp Lite SAS SFF-8088 cable. I'm pretty much out of ideas at this point. Can anyone assist?
I've uploaded the dmesg, storcli output and event logs from storcli.
The drives are configured as single, independent RAID0 from the MegaRAID, for lack of better knowledge. I didn't figure out till months later how to configure them as JBOD from the CLI. I will probably reconfigure them all as JBOD in the future. The storage is configured as zfs RAID-Z with the 8 new drives.
The problem is, intermittently and often, the alarm goes off on the LSI MegaRAID and all drives go offline simultaneously. Seconds later the enclosure reattaches again. Minutes later the enclosure goes offline again, then reattaches. This happens over and over with no set period of time.
Troubleshooting I've tried...I've replaced the LSI MegaRAID SAS 9286-8e, tried two different HP SAS expander cards, tried HP SAS expander firmware 2.06 and 2.10, tried a Monoprice SAS SFF-8088 and a Tripp Lite SAS SFF-8088 cable. I'm pretty much out of ideas at this point. Can anyone assist?
I've uploaded the dmesg, storcli output and event logs from storcli.
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