Re: 'Device not ready' issue on mpt2sas since 3.1.10

2012-07-22 Thread Tejun Heo
Hello, On Sat, Jul 21, 2012 at 02:15:56PM +0200, Matthias Prager wrote: Now I'm not sure this isn't taping over another bug. Which leads me to my question: What is the correct behavior? #1 Issuing a separate spin-up command (START UNIT?) prior to sending i/o by setting allow_restart=1 for

Re: 'Device not ready' issue on mpt2sas since 3.1.10

2012-07-22 Thread Matthias Prager
Hello Tejun, Am 22.07.2012 19:31, schrieb Tejun Heo: I haven't consulted SAT but it seems like a bug in SAS driver or firmware. If it's a driver bug, we better fix it there. If a firmware bug, working around those is one of major roles of drivers, so I think setting allow_restart is fine.

Re: question about path_id of scsi hard disk

2012-07-22 Thread gaoqiang
在 Sat, 21 Jul 2012 06:31:54 +0800,James Bottomley james.bottom...@hansenpartnership.com 写道: On Fri, 2012-07-20 at 16:24 +0800, gaoqiang wrote: I'm using udev to manage my hard disks. but I'm confusing about the PATH_ID gaoqiang@h150:~$/lib/udev/path_id /block/sda

RE question about path_id of scsi hard disk

2012-07-22 Thread Jack Wang
在 Sat, 21 Jul 2012 06:31:54 +0800,James Bottomley james.bottom...@hansenpartnership.com 写道: On Fri, 2012-07-20 at 16:24 +0800, gaoqiang wrote: I'm using udev to manage my hard disks. but I'm confusing about the PATH_ID gaoqiang@h150:~$/lib/udev/path_id /block/sda