In my test machine I can see the filesystem list using bdf commands.
$bdf Filesystem kbytes used avail %used Mounted on /dev/vg00/lvol3 58916864 6242747 49386840 11% / /dev/vg00/lvol1 2003481 47996 1755136 3% /stand /dev/vg77/stds 5120000 18753 4782427 0% /var/opt/stdenv /dev/vg77/scrap 3584000 18684 3342490 1% /tms/vts /dev/vg77/cmdsscrap 3584000 530986 2862264 16% /mnt
I have a scenario where I have to test the sar(1m) command to check the disk activity. for that I need a filesystem which is mirrored and configured with more then one disk.
But unfortunately the above existing filesystems are having only one disk mirrored with it.
# lvdisplay -v /dev/vg00/lvol1 --- Logical volumes --- LV Name /dev/vg00/lvol1 VG Name /dev/vg00 LV Permission read/write LV Status available/syncd Mirror copies 0 Consistency Recovery MWC Schedule parallel LV Size (Mbytes) 2000 Current LE 125 Allocated PE 125 Stripes 0 Stripe Size (Kbytes) 0 Bad block off Allocation strict/contiguous IO Timeout (Seconds) default --- Distribution of logical volume --- PV Name LE on PV PE on PV /dev/disk/disk4 125 125 <-- Only one disk is mirrored.
Can anyone please let me know, How to add another disk into these existing filesystem? Please help me with the steps for mirroring the disk with filesystem.