Re: raidframe puzzle

[Greg Oster <oster%cs.usask.ca@localhost>]

On Tue, 6 Aug 2013 15:27:09 +0100
Patrick Welche <prlw1%cam.ac.uk@localhost> wrote:

> A particular -current/amd64 box has raid0-3 on a pair of SATA disks,
> and raid4 on a pair of IDE disks. raid0-3 behaves as expected, but:
> 
> from dmesg:
> 
> wd0: GPT GUID: 0c870a1c-5dde-11e2-bea8-10bf48bd3389
> dk0 at wd0: 0c870a22-5dde-11e2-bea8-10bf48bd3389
> dk0: 625142381 blocks at 34, type: raidframe
> ...
> wd1: GPT GUID: 14283eb1-5dde-11e2-bea8-10bf48bd3389
> dk1 at wd1: 14283eb4-5dde-11e2-bea8-10bf48bd3389
> dk1: 625142381 blocks at 34, type: raidframe
> ...
> Component on: dk0: 625142381
>    Row: 0 Column: 0 Num Rows: 1 Num Columns: 2
>    Version: 2 Serial Number: 2013011400 Mod Counter: 1451820967
>    Clean: Yes Status: 0
>    sectPerSU: 128 SUsPerPU: 1 SUsPerRU: 1
>    RAID Level: 1  blocksize: 512 numBlocks: 625142272
>    Autoconfig: Yes
>    Contains root partition: No
>    Last configured as: raid4
> Component on: dk1: 625142381
>    Row: 0 Column: 1 Num Rows: 1 Num Columns: 2
>    Version: 2 Serial Number: 2013011400 Mod Counter: 1451820967
>    Clean: Yes Status: 0
>    sectPerSU: 128 SUsPerPU: 1 SUsPerRU: 1
>    RAID Level: 1  blocksize: 512 numBlocks: 625142272
>    Autoconfig: Yes
>    Contains root partition: No
>    Last configured as: raid4
> ...
> Found: dk0 at 0
> Found: dk1 at 1
> RAID autoconfigure
> Configuring raid4:
> Starting autoconfiguration of RAID set...
> Looking for 0 in autoconfig
> Found: dk0 at 0
> Looking for 1 in autoconfig
> Found: dk1 at 1
> raid4: allocating 20 buffers of 65536 bytes.
> raid4: RAID Level 1
> raid4: Components: /dev/dk0 /dev/dk1
> raid4: Total Sectors: 625142272 (305245 MB)
> 
> So all should be well... but
> 
> # raidctl -s raid4
> raidctl: invalid device: raid4d: No such file or directory

Check the current directory for a file named 'raid4'?

> # ls -l /dev/raid4*
> brw-r-----  1 root  operator  18, 64 Jan  8  2013 /dev/raid4a
> brw-r-----  1 root  operator  18, 65 Jan  8  2013 /dev/raid4b
> brw-r-----  1 root  operator  18, 66 Jan  8  2013 /dev/raid4c
> brw-r-----  1 root  operator  18, 67 Jan  8  2013 /dev/raid4d
> ...
> 
> ?
> 
> raidctl -s raid0 is happy...
> 
> I can't spot the difference...
> 
> Cheers,
> 
> Patrick


Later...

Greg Oster