Lucent Technologies 585-210-940 manual Verify disk space, Installing Mirrored Systems

Installing Mirrored Systems	CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
How to upgrade an Enterprise platform to disk mirroring		25

Step 10: Verify disk space

1.Display available disk space by entering a df -kcommand. The system responds with a file system table. For example:

Filesystem	kbytes	used	avail	capacity	Mounted on
/dev/md/dsk/d13	1039555	355366	580239	38%	/
/proc	0	0	0	0%	/proc
fd	0	0	0	0%	/dev/fd
swap	1305272	344	1304928	1%	/tmp
/dev/md/dsk/d21 31956788		849300	31107488	3%	/cms

The figures on the /dev/md/dsk/d21 line are critical. You will use them to determine whether Solstice DiskSuite* is administering all your disks.

2.Complete the table below by filling in (1a) and (1b) as instructed.

Disk Space Verification

Total No.	/cms size in MB	/cms size in MB
of Disks	(4-GB disks)	(9-GB disks)
2	3104	6208
4	7137	14274
6	11170	22340
8	15203	30406
10	19236

Calculations:

(1a) Enter /cms line’s ‘kbytes’ figure divided by 1000 (move decimal three places left):

(1b) Enter “/cms Size” (above left) corresponding to the number of hard disks and disk size:

(1a)

(1b)

3.Compare the figures in (1a) and (1b) of the table. They should be approximately equal. The two will not correspond exactly, but they should be within about 10% of the /cms size figure. A major discrepancy between the disk space you should have and the space recognized by your Solstice DiskSuite software usually indicates a connectivity problem. You can check connectivity by checking the output of a metastat command to see that all the disks are recognized. For example:

*Solstice DiskSuite is a trademark of Sun Microsystems, Inc.