Date: Thu, 12 Mar 2009 01:52:01 -0600 From: Clayton Fuller <claytonf@bitheaven.net> To: freebsd-geom@freebsd.org Subject: Safe to ignore GEOM warnings on ZFS raidz? Message-ID: <6D5ADA2B-9471-4404-892D-1DFAB9011C09@bitheaven.net>
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I am setting up a new home file server on CURRENT-8.0 using 4 1.5 TB SATA drives in a ZFS raidz pool I created the pool without first partitioning or labeling the drives. during the boot sequence, I get the following warnings for each of the drives: GEOM: ad6: corrupt or invalid GPT detected. GEOM: ad6: GPT rejected -- may not be recoverable. here's the drive info (I have 3 identical drives at ad8, ad12 and ad14) ad6: 1430799MB <Seagate ST31500341AS CC1H> at ata3-master SATA300 The storage pool seems to work fine, as tested by transferring nearly a terabyte of data, simulating a failed drive, resilvering, etc and all seems to be working well. invoking the zpool scrub <poolname> command will bring up the corrupt GPT errors again, but all other read/write operations on my storage pool seem to be fine. Is GEOM in any way necessary for managing this ZFS pool? Can I safely ignore the warnings? Is there a better way to configure this to keep GEOM happy? I'd be happy to supply more specifics if germane, but thought I'd try to keep it simple. Any suggestions would be greatly appreciated. -Clayton
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