hello everybody,

I have a system in Solaris 8 with SDS 4.2.1
I need to mirror the system disk which has the following characteristics :
* /dev/rdsk/c0t0d0s2 partition map
*
* Dimensions:
* 512 bytes/sector
* 133 sectors/track
* 27 tracks/cylinder
* 3591 sectors/cylinder
* 4926 cylinders
* 4924 accessible cylinders
*
* Flags:
* 1: unmountable
* 10: read-only
*
* First Sector Last
* Partition Tag Flags Sector Count Sector Mount Directory
0 2 00 0 4097331 4097330 /
1 7 00 4097331 2100735 6198065 /var
2 5 00 0 17682084 17682083
3 3 01 6198066 4197879 10395944
5 8 00 16335459 1278396 17613854 /export/home
6 4 00 10395945 5939514 16335458 /usr
7 2 00 17613855 68229 17682083

But the only available disk is a bigger one with the characteristics :
* /dev/rdsk/c0t3d0s2 partition map
*
* Dimensions:
* 512 bytes/sector
* 248 sectors/track
* 19 tracks/cylinder
* 4712 sectors/cylinder
* 7508 cylinders
* 7506 accessible cylinders
*
* Flags:
* 1: unmountable
* 10: read-only
*
* First Sector Last
* Partition Tag Flags Sector Count Sector Mount Directory
0 4 00 0 35368272 35368271
2 5 01 0 35368272 35368271

I guess that I cannot have exactly the same partitions on the 2 disks, but is there a way to solve this problem : re-formatting the second disk ? an other solution ? or is it completely impossible ?

Thanks in advance for your answers.

Regards.

Alain RIBAULT

Yea, not a problem. As long as the two disks have the same sized partitions you can successfully mirror them.

Carl

Yes, I know that the 2 disks must have the same partition size, but the 2 disks are different :
first : 6602383872 bytes per cylinder
second : 11367907328 bytes per cylinder
Does it mean that I have to format the second disk as the first one ? And is it possible ?

It doesn't matter. As long as the two partition sizes are the same, the disks will mirror. Heck, they can be different slices as long as the actual size of the slices match.

Carl