Solaris Commands Interview Question:

What you would do if you want to replace a slice using metareplace option?

Submitted by: Administrator

We use metareplace usually when we have have faulty
submirrors and once replaced it resyncs with the failed
components.
1) Find the meta state databases on the slice
#metadb -i
2) If any meta state databases exist remove them
#metadb -d c0t0d0sX where x is slice number
3) Once the meta state databases are removed we can use
cfgadm to unconfigure the device
#cfgadm -c unconfigure diskname
Once unconfigured replace the disk and configure it as
below
4)#cfgadm -c configure diskname
5) Now copy the Volume Table Of Contents (VTOC) to the new
disk
#prtvtoc /dev/rdsk/devicename | fmthard -s -
/dev/rdsk/devicename
6) Once the VTOC is in place now use metareplace command to
replace the faulty meta devices
#metareplace -e d11 devicename ( Where d11 is the
meta device )
Submitted by: Administrator