To go along with my previous post (reporting on LUN tier distribution) I also include information on the same intranet page about the current state of the auto-tiering job. We run auto-tiering from 10PM to 6AM in the morning to avoid the movement of data during business hours or our normal backup window in the evening.
Sometimes the auto-tiering job will get very backed up and would theoretically never finish in the time slot that we have for data movement. I like to keep tabs on the amount of data that needs to move up or down, and the amount of time that the array estimates until it’s completion. If needed, I will sometimes modify the schedule to run 24 hours a day over the weekend and change it back early on Monday morning. Unfortunately, EMC did not design the auto-tiering scheduler to allow for creating different time windows on different days. It’s a manual process.
This is a relatively simple, one line CLI command, but it provides very useful info and it’s convenient to add it to a daily report to see it at a glance.
I run this script at 6AM every day, immediately following the end of the window for data to move:
naviseccli -h clariion1_hostname autotiering -info -state -rate -schedule -opStatus > c:\inetpub\wwwroot\clariion1_hostname.autotier.txt naviseccli -h clariion2_hostname autotiering -info -state -rate -schedule -opStatus > c:\inetpub\wwwroot\clariion2_hostname.autotier.txt naviseccli -h clariion3_hostname autotiering -info -state -rate -schedule -opStatus > c:\inetpub\wwwroot\clariion3_hostname.autotier.txt naviseccli -h clariion4_hostname autotiering -info -state -rate -schedule -opStatus > c:\inetpub\wwwroot\clariion4_hostname.autotier.txt ....The output for each individual clariion looks like this:
Auto-Tiering State: Enabled Relocation Rate: Medium Schedule Name: Default Schedule Schedule State: Enabled Default Schedule: Yes Schedule Days: Sun Mon Tue Wed Thu Fri Sat Schedule Start Time: 22:00 Schedule Stop Time: 6:00 Schedule Duration: 8 hours Storage Pools: Clariion1_SPB, Clariion2_SPA Storage Pool Name: Clariion2_SPA Storage Pool ID: 0 Relocation Start Time: 12/05/11 22:00 Relocation Stop Time: 12/06/11 6:00 Relocation Status: Inactive Relocation Type: Scheduled Relocation Rate: Medium Data to Move Up (GBs): 1854.11 Data to Move Down (GBs): 909.06 Data Movement Completed (GBs): 2316.00 Estimated Time to Complete: 9 hours, 12 minutes Schedule Duration Remaining: None Storage Pool Name: Clariion1_SPB Storage Pool ID: 1 Relocation Start Time: 12/05/11 22:00 Relocation Stop Time: 12/06/11 6:00 Relocation Status: Inactive Relocation Type: Scheduled Relocation Rate: Medium Data to Move Up (GBs): 1757.11 Data to Move Down (GBs): 878.05 Data Movement Completed (GBs): 1726.00 Estimated Time to Complete: 11 hours, 42 minutes Schedule Duration Remaining: None