We are usuing 5 node cluster on 18.104.22.168 on RHEL 5 . Today i found one of my ASM diskgroup got 95 filled . so i checked any candidate disk in diskgroup but all disk are already member of ASM diskgroup. So we raised request to storage team to provide space . Now storage team has provided us space.
Now i need your help how to add that space on ASM diskgroup in 22.214.171.124.
how did they provide space? Did they create another LUN?
=> If yes, does you O/S already see the LUN?
=> Do you use multipathing? Is the dm/mapper device already visible?
=> Do you use ASMLib? Have you stamped the disk?
Last step then is to add the disk to the diskgroup (either with ASMCA or with sqlplus (alter diskgroup add disk <xyz>)
Thanks for you reply. Below is the answer of your Queries:
===>Yes ,they have added new lun and OS is able to see LUN.
===>Yes we are using multipathing. Yes DM/Mapper is already visible
===>Yes ,we use ASMLib,NO we have not stamped disk . Please let me know in detail what i need to do to add disk in my diskgroup and regarding asm stamping also.