Re: WD Blue 510 SSD and strange write performance
- Reply: Frank Leonhardt : "Re: WD Blue 510 SSD and strange write performance"
- In reply to: Bob Bishop : "Re: WD Blue 510 SSD and strange write performance"
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Date: Thu, 14 Mar 2024 19:36:41 UTC
On 3/14/2024 2:56 PM, Bob Bishop wrote: > Probably (I don’t know for sure) these drives have a RAM write cache > and really suck at committing from there to NVM. ZFS doesnt seem to like it, or, possibly something else in addition going on. I will start to get errors like this (da4:mrsas0:0:23:0): READ(10). CDB: 28 00 3c 39 f2 60 00 00 08 00 (da4:mrsas0:0:23:0): CAM status: SCSI Status Error (da4:mrsas0:0:23:0): SCSI status: OK (da5:mrsas0:0:24:0): READ(10). CDB: 28 00 28 0b b5 38 00 00 f0 00 (da5:mrsas0:0:24:0): CAM status: SCSI Status Error (da5:mrsas0:0:24:0): SCSI status: OK when I have a heavy stream of zfs send | zfs recv going on. Not sure if its possible to work around this or its some other bad interaction, or just a plain old bug in the firmware of these SSDs ---Mike