[SunHELP] disksuite limitations ?

[Tom Stockton]

Thanks for that Magnus

Incidentally I have just found a way of increasing the number of metadevices per 
diskset from sunhelpdesk.com.  Can you envisage any problems with this solution.

Tom Stockton

Q How do I create more than 128 meta devices?

A   Edit the file /kernel/drv/md.conf file and change the "nmd" field
from 
   nmd=128 to whatever amount is needed (i.e., 255).
        
   Then boot -r to build these new devices.

>
>On Tue, Nov 21, 2000 at 03:12:49PM +0000, Tom Stockton wrote:
>> Hi
>> 
>> I am configuring an E450 fully loaded with 20 18GB disks. The requirement is 
>> for 7 partitions per disk to be mirrored using disk suite. This would total 
140 
>> components. All has been going fine until I have tried to add the 128th 
device, 
>> I receive the message 
>> concat/stripe commit error, looking up device d128, no such file or 
directory' 
>
>The limit in DiskSuite is 128 MetaDevices / Diskset, with a total maximum
>of 1024 metadevices. 
>
>So what you need to do here is to create some disksets (man metaset)
>
>These devices will be places as /dev/md/<name of diskset>/dsk/<metadevice>
>instead of /dev/md/dsk>/<metadevice>. There is actually some other 
>advantadges of using disksets, like if you are using HotSpares (metahs) or 
>so.
>