Re: replacing drives

[Roberto Nunnari <roberto.nunnari@supsi.ch>]

Roberto Nunnari wrote:
> Robin Hill wrote:
>> On Tue Apr 30, 2013 at 03:17:30PM +0200, Roberto Nunnari wrote:
>>>>  - grow the arrays to 4 members (this avoids any loss of redundancy)
>>> now the next step.. that's a raid1 array.. is it possible to grow the 
>>> arrays to 4 members?
>>>
>> Yes, there's no problem with running RAID1 arrays with more than two
>> mirrors (with md anyway) - they're all identical so it doesn't really
>> make any difference how many you have.
>>
>> Cheers,
>>     Robin
> 
> ok.. it's rebuilding.. I started with md0.. I'll wait it finishes and 
> then do md1(8GB) and after that, md2(almost 2TB).. for now it seems to 
> be going well, isn't it?
> 
> # mdadm -D /dev/md0
> /dev/md0:
>         Version : 00.90
>   Creation Time : Fri Apr 22 08:20:49 2011
>      Raid Level : raid1
>      Array Size : 48827328 (46.57 GiB 50.00 GB)
>   Used Dev Size : 48827328 (46.57 GiB 50.00 GB)
>    Raid Devices : 4
>   Total Devices : 4
> Preferred Minor : 0
>     Persistence : Superblock is persistent
> 
>     Update Time : Tue Apr 30 16:01:40 2013
>           State : clean, degraded, recovering
>  Active Devices : 2
> Working Devices : 4
>  Failed Devices : 0
>   Spare Devices : 2
> 
>  Rebuild Status : 15% complete
> 
>            UUID : 1158db16:ee1fcafc:b6fab772:d376c644
>          Events : 0.964
> 
>     Number   Major   Minor   RaidDevice State
>        0       8        1        0      active sync   /dev/sda1
>        1       8       33        1      active sync   /dev/sdc1
>        4       8       49        2      spare rebuilding   /dev/sdd1
>        5       8       17        3      spare rebuilding   /dev/sdb1
> 
> 
> Robi


rebuilt and clean! hehehe
Robi