Bug#759063: mdadm RAID5 array intermittently stalls during a write operation

2023-02-27 Thread Daniel Baumann
close 759063 thanks Hi, thank you for reporting this. I second upstreams opinion that there's nothing at the MD layer involved here. Given that the bugreport is a single issue nobody else reported and is 9 years old without followups since, I'm closing this bug. If you can still reproduce the i

Bug#759063: mdadm RAID5 array intermittently stalls during a write operation

2014-08-25 Thread Tim Boundy
I have a stride value of 128 and a stripe_width value of 384. When I created the filesystem with 4 drives (3 + 1), these were suggested values to encourage rotation. Is this not correct?

Bug#759063: mdadm RAID5 array intermittently stalls during a write operation

2014-08-25 Thread NeilBrown
On Mon, 25 Aug 2014 17:28:52 +1000 Tim Boundy wrote: > After some additional testing, my issue appears related to > http://thr3ads.net/ext3-users/2013/04/2300336-LONG-Delay-when-writing-to-ext4-LVM-after-boot > > With clean restart of the array, followed by running dumpe2fs (presumably > to pref

Bug#759063: mdadm RAID5 array intermittently stalls during a write operation

2014-08-25 Thread Tim Boundy
After some additional testing, my issue appears related to http://thr3ads.net/ext3-users/2013/04/2300336-LONG-Delay-when-writing-to-ext4-LVM-after-boot With clean restart of the array, followed by running dumpe2fs (presumably to prefetch bitmaps), the initial write delay is resolved. However I'm s

Bug#759063: mdadm RAID5 array intermittently stalls during a write operation

2014-08-23 Thread NeilBrown
On Sun, 24 Aug 2014 12:16:03 +1000 Tim Boundy wrote: > Package: mdadm > Version: 3.3-2 > Severity: normal > Tags: upstream > > I have a RAID5 array using 4x 3TB WD Red drives. On occasion while writing to > the array, the write operation will stall. Using iostat, I can see that one > of the me

Bug#759063: mdadm RAID5 array intermittently stalls during a write operation

2014-08-23 Thread Tim Boundy
Package: mdadm Version: 3.3-2 Severity: normal Tags: upstream I have a RAID5 array using 4x 3TB WD Red drives. On occasion while writing to the array, the write operation will stall. Using iostat, I can see that one of the member disks shows >95% utilisation performing reads at approximately 0.