Stalling issues with Promise R4 array

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Stalling issues with Promise R4 array

Post by Keltounet » Fri Jan 04, 2013 9:40 am

Hello,

I have a brand new MacMini to which I connect a Promise R4 array with 4x 1 TB disks with thunderbolt. Al are in passthrough mode and put into a raidz pool. I'm transferring files from my previous machines with rsync. While the performance is to me acceptable, every now and then the whole pool stall for a few seconds with various clicks been heard from the disks (calibration?). I could do with this except that sometimes, the whole pool disappear completely. zpool does not see it and neither does the control panel extension. Only reboot from the machine and/or the Promise can fix this.

Any idea? Could it be a Promise issue or a ZFS one? I'm still not sure which.
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Sleep of disks

Post by grahamperrin » Sun Jan 06, 2013 10:09 am

Sounds like a bus error.

If you disallow sleep of hard disks (in the Energy Saver pane of System Preferences), can you reproduce the problem?
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Update

Post by grahamperrin » Wed Mar 27, 2013 8:59 pm

Any news on this?

Possible cross reference: Zevo ZFS with Promise R4 & Mac Mini
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