New To Solaris Post: 302503625

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Operating Systems Solaris New To Solaris Post 302503625 by Andyp2704 on Friday 11th of March 2011 06:43:23 AM

03-11-2011

Registered User

New To Solaris

Hi,

I have recently been told i need to look after a clients Solaris servers (8,9 and 10) and wondered if i could ask the forum for some quick advice on a couple of things. All my previous admin work is on HPUX and have discovered the way the Solaris disk management and file system management is massively different. So i wonder if you might be able to offer some help on a couple of questions.

One of my first tasks is to identify if the servers have got mirrored boot disks. In HPUX i would simply type lvlnboot -v and it would tell me, but i cannot find anywhere a single command in Solaris that would tell me this.

Question1 : Is there a single command i can run that will tell me if the disks are mirrored?

The other think that is confusing me is how the filesystems are set up. I have been looking at the format command as this is the only way i have found that will list the disks and give me an idea if they are internal or in an external array.

While i was looking in the format command i checked out the partition table. On the server i looked at i went into the format command twice, each time choosing a different disk, both of which appear to be internal and i saw these outputs from the print command;

DISK1;
partition> print
Current partition table (original):
Total disk cylinders available: 14087 + 2 (reserved cylinders)

Part Tag Flag Cylinders Size Blocks
0 root wm 1 - 1895 9.20GB (1895/0/0) 19283520
1 swap wu 1897 - 2350 2.20GB (454/0/0) 4619904
2 backup wm 0 - 14086 68.35GB (14087/0/0) 143349312
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 2352 - 2366 74.53MB (15/0/0) 152640

DISK2:
partition> print
Current partition table (original):
Total disk cylinders available: 24620 + 2 (reserved cylinders)

Part Tag Flag Cylinders Size Blocks
0 root wm 1 - 6751 9.30GB (6751/0/0) 19503639
1 swap wu 6752 - 8421 2.30GB (1670/0/0) 4824630
2 backup wm 0 - 24619 33.92GB (24620/0/0) 71127180
3 unassigned wm 0 0 (0/0/0) 0
4 unassigned wm 0 0 (0/0/0) 0
5 unassigned wm 0 0 (0/0/0) 0
6 unassigned wm 0 0 (0/0/0) 0
7 unassigned wm 8422 - 8475 76.17MB (54/0/0) 156006

Question 2: Is there a single command that will tell me if a disk is internal or external instead of using format?

Question 3: Looking at the above output am i correct in assuming that the 2nd disks is a mirror of the first? It just bothered me why the number of blocks was so different to achieve roughly the same size (9.20Gb)

I am going to try and find some documentation for Solaris 8,9 and 10 that explains how Solaris manages disks and filesystems in the meantime, but any help would be brilliant.

Thank you.

Andyp2704

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LEARN ABOUT OSF1

volrootmir

volrootmir(8)						      System Manager's Manual						     volrootmir(8)

NAME

       volrootmir - Mirror areas necessary for booting to a new disk

SYNOPSIS

       /usr/sbin/volrootmir [-a] [nconfig=count] target_disk [swap=target_partition]

OPTIONS

       Specifies that all volumes on the system disk be mirrored, not just the root and swap volumes, rootvol and swapvol.

DESCRIPTION

       The volrootmir script causes a mirror copy of areas of the root disk involved in booting to be made on the specified target disk.

       When  used without the -a option, volrootmir adds mirrors of the root and swap volumes and allocates them on the new disk. In addition, all
       disk regions required for booting are set up and partitions for the new volume mirrors are created.

       When used with the -a option, volrootmir mirrors all in-use partitions on the system disk.

       To mirror a swap volume that is on a separate disk from the root volume, the swap attribute must be used to specify a separate  target  for
       the swap mirror.

       The  target  disk(s)  must be at least as large as the sum of the sizes of rootvol and swapvol. Also, the physical disk should not have any
       disk partition in use.

       This script can be called from the voldiskadm menus by choosing the Mirror volumes on a disk operation.

ATTRIBUTES

       Specifies the number of log copies and copies of the configuration database, for example,  nconfig=2.   Specifies  that	the  swap  volume,
       swapvol, be mirrored on a separate disk, as specified by target_partition.

EXAMPLES

       The following command mirrors the rootvol and swapvol volumes onto the target disk, dsk3. This command will fail if swapvol is on a differ-
       ent disk from rootvol.

	      # volrootmir dsk3 The following command mirrors rootvol, swapvol, and any other volumes on the root disk onto the target disk, dsk3.
	      This command will fail if swapvol is on a different disk from rootvol.

	      #  volrootmir -a dsk3 The following command mirrors rootvol on disk dsk3, swapvol onto partition dsk7d, and any other volumes on the
	      root disk onto disk dsk3. This command will fail if swapvol is on the same disk as rootvol.

	      # volrootmir -a dsk3 swap=dsk7d The following command mirrors rootvol onto disk dsk3 and swapvol onto partition dsk7d. This  command
	      will fail if swapvol is on the same disk as rootvol.

	      # volrootmir dsk3 swap=dsk7d

SEE ALSO

       volintro(8), voldiskadm(8)

																     volrootmir(8)