星期四, 8月 29, 2013

IBM V7000 unified cannot delete mdisk

When you delete offline MDISK, you may be got the error code CMMVC5825E, if use -force you will got the another error code CMMV5860E.

solution:
1.ssh to active console.
2. lsdisk you will see the (xxxx) file system and status is ready, but Availability is empty.
3. make sure these disk are all in the mdisk which we want to remove.
4. rmdisk

after rmdisk, now , you can delete mdisk.

星期三, 8月 28, 2013

Chandler: Linux disk I/O performance testing tool

Chandler: Linux disk I/O performance testing tool: http://www.iorate.org 使用方法: 1. vi devices.ior (檔案放在要測試的disk) # File system example Device = "/tmp/iorate.tst"  capacity 8GB; ...