Date: Thu, 14 Mar 2024 16:26:15 -0400 From: mike tancsa <mike@sentex.net> To: Frank Leonhardt <frank@fjl.co.uk>, freebsd-hardware@freebsd.org, Bob Bishop <rb@gid.co.uk> Subject: Re: WD Blue 510 SSD and strange write performance Message-ID: <8f7ec337-16ab-4dd3-a291-e6830f31c51e@sentex.net> In-Reply-To: <69e47494-01aa-4149-a326-91d82dfdc46e@sentex.net> References: <e5c2a99d-931e-48b4-9445-fc4ad05ccc70@sentex.net> <CCAB653B-4DC6-4C69-AB68-CD258200D22F@gid.co.uk> <6504bd49-eca5-4e0a-b2bd-23d29405bb7a@sentex.net> <4832DE6A-5C82-4805-99BB-220D4342AE0F@fjl.co.uk> <69e47494-01aa-4149-a326-91d82dfdc46e@sentex.net>
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On 3/14/2024 3:56 PM, mike tancsa wrote: > On 3/14/2024 3:48 PM, Frank Leonhardt wrote: >> "CAM status: SCSI Status Error" suggests to me that the drive was >> just too busy when asked. I'm not saying it's nothing to worry about, >> but neither am I saying it is. > > Given enough of them it does cause checksum errors on the test pool > unfortunately. Could a buggy TRIM play a role here too ? I noticed a > commit the other day for a Segate SSD that had a broken NCQ TRIM. > Could these units suffer from that ? > https://cgit.freebsd.org/src/commit/?h=stable/14&id=47fff7407c22c2c4b36b4f9f27ddfa70bb8f3fee > > > Is there a way to turn that off via camcontrol ? Or perhaps instrument > some other settings ? I am not wedded to this hardware, but it would > be good to know if they can be made workable without too much effort. > On another test box with an MPR controller and same WD drives, a few more messages after the zfs send is about 50% done on a dataset thats about 1TB but compressed to about 260G. Some 29 million files. But with Samsungs, reliably no issue :( (da6:mpr0:0:16:0): WRITE(10). CDB: 2a 00 48 1e 9b 90 00 00 80 00 mpr0: Controller reported scsi ioc terminated tgt 16 SMID 897 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 16 SMID 1358 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 16 SMID 1742 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 16 SMID 1187 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 16 SMID 1006 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 16 SMID 758 loginfo 31110f00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): WRITE(10). CDB: 2a 00 48 1e 9c 10 00 00 b8 00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): WRITE(10). CDB: 2a 00 46 93 47 18 00 00 08 00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): READ(10). CDB: 28 00 1c c7 dc 40 00 01 00 00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): READ(10). CDB: 28 00 1c c7 d9 30 00 00 f8 00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): WRITE(10). CDB: 2a 00 46 93 47 10 00 00 08 00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): READ(10). CDB: 28 00 1c c7 d8 30 00 01 00 00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): WRITE(10). CDB: 2a 00 49 55 29 20 00 00 08 00 (da6:mpr0:0:16:0): CAM status: CCB request completed with an error (da6:mpr0:0:16:0): Retrying command, 3 more tries remain (da6:mpr0:0:16:0): WRITE(10). CDB: 2a 00 48 1e 9b 90 00 00 80 00 (da6:mpr0:0:16:0): CAM status: SCSI Status Error (da6:mpr0:0:16:0): SCSI status: Check Condition (da6:mpr0:0:16:0): SCSI sense: UNIT ATTENTION asc:29,0 (Power on, reset, or bus device reset occurred) (da6:mpr0:0:16:0): Retrying command (per sense data) mpr0: Controller reported scsi ioc terminated tgt 13 SMID 1023 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 13 SMID 297 loginfo 31110f00 (da3:mpr0:0:13:0): WRITE(10). CDB: 2a 00 4c 49 50 18 00 00 a0 00 mpr0: Controller reported scsi ioc terminated tgt 13 SMID 1999 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 13 SMID 280 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 13 SMID 1970 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 13 SMID 859 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 13 SMID 1652 loginfo 31110f00 mpr0: Controller reported scsi ioc terminated tgt 13 SMID 613 loginfo 31110f00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): WRITE(10). CDB: 2a 00 4c 49 4e a8 00 01 00 00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): WRITE(10). CDB: 2a 00 4c 49 4f a8 00 00 70 00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): WRITE(10). CDB: 2a 00 4c bc 65 30 00 01 08 00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): READ(10). CDB: 28 00 2c 99 68 80 00 01 00 00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): WRITE(10). CDB: 2a 00 46 98 1e b8 00 00 18 00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): READ(10). CDB: 28 00 1e cd a8 28 00 00 18 00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): WRITE(10). CDB: 2a 00 4c bc 64 30 00 01 00 00 (da3:mpr0:0:13:0): CAM status: CCB request completed with an error (da3:mpr0:0:13:0): Retrying command, 3 more tries remain (da3:mpr0:0:13:0): WRITE(10). CDB: 2a 00 4c 49 4e a8 00 01 00 00 (da3:mpr0:0:13:0): CAM status: SCSI Status Error (da3:mpr0:0:13:0): SCSI status: Check Condition (da3:mpr0:0:13:0): SCSI sense: UNIT ATTENTION asc:29,0 (Power on, reset, or bus device reset occurred) (da3:mpr0:0:13:0): Retrying command (per sense data)
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