[plug] SATA chipset support question

[Brad Campbell]

Harry wrote:
> On Thu, 13 May 2004 12:58:41 +0400 Brad Campbell <brad at wasp.net.au> wrote:
> 
> 
>>Since I note you are a debian user try this.
>>
>>http://xtronics.com/reference/SATA-RAID-Debian.htm
> 
> 
> The text snapshots show the md2 never gets in sync. Is that
> true or have I missed something ?

Nope, probably not.. Check out the last line and note there is only one device listed in the array. 
I guess it's hard to get it to sync if the other device is not present (or has not been added to the 
array anyway)

> md2 : active raid1 ide/host2/bus1/target0/lun0/part3[1]
> 116045440 blocks [2/1] [_U]

I personally did not really read the article, just picked it up along the way.

Here are my 2 /proc/mdstat's from different servers. I only ever run Debian or completely built from 
scratch (not LFS but just bootstrapped by hand). All my machines now are Debian, but I use 
self-built kernels always.

gateway:~# cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 hdc1[1] hda1[0]
       2104384 blocks [2/2] [UU]

md1 : active raid1 hdc2[1] hda2[0]
       530048 blocks [2/2] [UU]

md2 : active raid1 hdc3[1] hda3[0]
       2104448 blocks [2/2] [UU]

md3 : active raid1 hdc4[1] hda4[0]
       112478976 blocks [2/2] [UU]


brad at srv:~$ cat /proc/mdstat
Personalities : [raid0] [raid5] [raid6]
md0 : active raid5 sdj1[9] sdi1[8] sdh1[7] sdg1[6] sdf1[5] sde1[4] sdd1[3] sdc1[2] sdb1[1] sda1[0]
       2206003968 blocks level 5, 128k chunk, algorithm 0 [10/10] [UUUUUUUUUU]

I have not practically figured out how to easily stuff more than 10 drives into a box in a reliable, 
well cooled raid array.

Brad