Re: IO failures with SMR drives at latest kernel versions

2015-08-26 Thread Hannes Reinecke
On 08/27/2015 12:52 AM, James Bottomley wrote: > On Wed, 2015-08-26 at 08:40 +0200, Hannes Reinecke wrote: >> On 08/26/2015 06:53 AM, Anatol Pomozov wrote: >>> Hi >>> >>> On Sun, Aug 23, 2015 at 11:15 PM, Hannes Reinecke wrote: > I looked at this commit and it actually adds SMR support to SCSI

Re: IO failures with SMR drives at latest kernel versions

2015-08-26 Thread James Bottomley
On Wed, 2015-08-26 at 08:40 +0200, Hannes Reinecke wrote: > On 08/26/2015 06:53 AM, Anatol Pomozov wrote: > > Hi > > > > On Sun, Aug 23, 2015 at 11:15 PM, Hannes Reinecke wrote: > >>> I looked at this commit and it actually adds SMR support to SCSI > >>> layer. Reverting ATA_DEV_ZAC means going b

Re: IO failures with SMR drives at latest kernel versions

2015-08-26 Thread Anatol Pomozov
Hi The same issue was reported here http://www.spinics.net/lists/linux-ide/msg50641.html Adding Adrian from Seagate to help track down this issue. On Tue, Aug 25, 2015 at 11:40 PM, Hannes Reinecke wrote: > On 08/26/2015 06:53 AM, Anatol Pomozov wrote: >> Hi >> >> On Sun, Aug 23, 2015 at 11:15 P

Re: IO failures with SMR drives at latest kernel versions

2015-08-25 Thread Hannes Reinecke
On 08/26/2015 06:53 AM, Anatol Pomozov wrote: > Hi > > On Sun, Aug 23, 2015 at 11:15 PM, Hannes Reinecke wrote: >>> I looked at this commit and it actually adds SMR support to SCSI >>> layer. Reverting ATA_DEV_ZAC means going back to zones-unaware >>> algorithms. It is suboptimal but still much b

Re: IO failures with SMR drives at latest kernel versions

2015-08-25 Thread Anatol Pomozov
Hi On Sun, Aug 23, 2015 at 11:15 PM, Hannes Reinecke wrote: >> I looked at this commit and it actually adds SMR support to SCSI >> layer. Reverting ATA_DEV_ZAC means going back to zones-unaware >> algorithms. It is suboptimal but still much better than IO failures >> and "BTRFS: lost page write d

Re: IO failures with SMR drives at latest kernel versions

2015-08-24 Thread Anatol Pomozov
Hi On Sun, Aug 23, 2015 at 11:15 PM, Hannes Reinecke wrote: > On 08/22/2015 07:23 PM, Anatol Pomozov wrote: >> Hi >> >> On Fri, Aug 21, 2015 at 10:37 PM, Anatol Pomozov >> wrote: >>> Discs are from different batches and I was a bit surprised to see >>> identical failures at the same time. I was

Re: IO failures with SMR drives at latest kernel versions

2015-08-23 Thread Hannes Reinecke
On 08/22/2015 07:23 PM, Anatol Pomozov wrote: > Hi > > On Fri, Aug 21, 2015 at 10:37 PM, Anatol Pomozov > wrote: >> Discs are from different batches and I was a bit surprised to see >> identical failures at the same time. I was ready send the drives to >> RMA but then I discovered this thread >>

Re: IO failures with SMR drives at latest kernel versions

2015-08-23 Thread Hannes Reinecke
On 08/22/2015 07:37 AM, Anatol Pomozov wrote: > Hi > > I recently got 2 Seagate 8Tb drives. 'dd' over whole disc ran fine. > Then I inserted into my RAID and started rebalancing. I've got > following error almost immediately: > > > > ata5.00: failed command: WRITE FPDMA QUEUED > ata5.00: cmd 61

Re: IO failures with SMR drives at latest kernel versions

2015-08-22 Thread Anatol Pomozov
Hi On Fri, Aug 21, 2015 at 10:37 PM, Anatol Pomozov wrote: > Discs are from different batches and I was a bit surprised to see > identical failures at the same time. I was ready send the drives to > RMA but then I discovered this thread > https://bbs.archlinux.org/viewtopic.php?id=199351 A lot of

Re: IO failures with SMR drives at latest kernel versions

2015-08-22 Thread Tejun Heo
Hello, On Fri, Aug 21, 2015 at 10:37:44PM -0700, Anatol Pomozov wrote: ... > https://bbs.archlinux.org/viewtopic.php?id=199351 A lot of people > report the same problem as mine. It was found that the problem appears > only starting from 3.19, with kernel 3.18 or Windows these drives work > fine. I

IO failures with SMR drives at latest kernel versions

2015-08-21 Thread Anatol Pomozov
Hi I recently got 2 Seagate 8Tb drives. 'dd' over whole disc ran fine. Then I inserted into my RAID and started rebalancing. I've got following error almost immediately: ata5.00: failed command: WRITE FPDMA QUEUED ata5.00: cmd 61/00:e0:80:e7:75/1d:00:9f:00:00/40 tag 28 ncq 3801088 out