[SunHELP] Do you need to break the mirror when replacing a ba d hard drive ?

[Low, Adam]

If you already have another drive in there then you can use the metareplace but if you dont you need to dettach the submirror  , shutdown, replace drive, reboot and finally re-create the submirror.

There are plenty of docs on this that describe how to add and remove drives/mirrors:

http://docs.sun.com:80/ab2/coll.260.2/@Ab2CollView?Ab2Lang=C&Ab2Enc=iso-8859-1

Cheers,
Adam

> -----Original Message-----
> From: ymui at royalsunalliance.ca [mailto:ymui at royalsunalliance.ca]
> Sent: 04 July 2001 15:48
> To: sunhelp at sunhelp.org
> Subject: [SunHELP] Do you need to break the mirror when 
> replacing a bad
> hard drive ?
> 
> 
> The box has not been reboot since Feb this year.
> 
> ---------------
> Hello Administrators,
> 
> We have RADI 1 (mirror) set up by DiskSuite on the boot disk. 
>  There is a
> hardware error on the alternate disk and Metastat shows :
> 
> d2: Submirror of d0
>     State: Needs maintenance
>     Invoke: metareplace d0 c0t1d0s0 <new device>
> 
> Metadb -i :
>        flags           first blk       block count
>      a m  p  luo        16              1034            
> /dev/dsk/c0t0d0s3
>      a    p  luo        1050            1034            
> /dev/dsk/c0t0d0s3
>      a    p  luo        2084            1034            
> /dev/dsk/c0t0d0s3
>       W   p  l          16              1034            
> /dev/dsk/c0t1d0s3
>       W   p  l          1050            1034            
> /dev/dsk/c0t1d0s3
>       W   p  l          2084            1034            
> /dev/dsk/c0t1d0s3
> 
> There are only 2 slices and the other slice (swap partition) is fine.
> 
> Before replacing the problem hard disk which requires a 
> reboot (as these
> are internal disks) do you need to break the mirror first ?  
> Or, just shut
> down the system, replace the hard disk, boot, partition and 
> recreate the
> metadb on the new drive and synchronise the mirror ?
> 
> Much appreciated.
> 
> Yingha.
> 
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