root aggregate small allocated 5

mannycastillo · ‎2017-12-11

I recently install two HA AFF A700. one of this with two shelf 9 disk 900G and 39 disk 3.8T the other controller has the same configuration. the layout was disk 0.0,0.1, and 1.0.1.1 to root aggregate node 1 and 0.2,0.3 and 1.2,1.3 for root aggregate node 2. disk 0.4 is spare all this disk are 900g. the problen is one HA have 1TiB root aggregate and other HA has 100G root agregate. Why? other thing is i have all in produtcion how can i fix this for AFF A700 minimun root aggrete size is 1TiB.

Allocated unit 61153 vs 611356 same disk size 900G. all other disk 3.8T for data aggregate unpartition disk.

HA 1 Allocate unit for root is 61153

Aggregate Aggr0_root_N1 (online, raid_dp) (block checksums)
  Plex /Aggr0_root_N1/plex0 (online, normal, active, pool0)
    RAID group /Aggr0_root_N1/plex0/rg0 (normal, block checksums)

      RAID Disk	Device  	HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------	------  	------------- ---- ---- ---- ----- --------------    --------------
      dparity 	2a.00.0P3	2a    0   0   SA:A   0   SSD   N/A 61153/125241856   61161/125258240 
      parity  	9a.00.1P3	9a    0   1   SA:A   0   SSD   N/A 61153/125241856   61161/125258240 
      data    	2a.01.0P3	2a    1   0   SA:A   0   SSD   N/A 61153/125241856   61161/125258240 
      data    	2d.01.1P3	2d    1   1   SA:B   0   SSD   N/A 61153/125241856   61161/125258240

Aggregate Aggr0_root_N2 (online, raid_dp) (block checksums)
  Plex /Aggr0_root_N2/plex0 (online, normal, active, pool0)
    RAID group /Aggr0_root_N2/plex0/rg0 (normal, block checksums)

      RAID Disk	Device  	HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------	------  	------------- ---- ---- ---- ----- --------------    --------------
      dparity 	2a.00.2P3	2a    0   2   SA:B   0   SSD   N/A 61153/125241856   61161/125258240 
      parity  	9a.00.3P3	9a    0   3   SA:B   0   SSD   N/A 61153/125241856   61161/125258240 
      data    	9a.01.2P3	9a    1   2   SA:B   0   SSD   N/A 61153/125241856   61161/125258240 
      data    	9b.01.3P3	9b    1   3   SA:A   0   SSD   N/A 61153/125241856   61161/125258240

HA 2  (Allocate unit for root is 611356

Aggregate Aggr0_root_N1 (online, raid_dp) (block checksums)
  Plex /Aggr0_root_N1/plex0 (online, normal, active, pool0)
    RAID group /Aggr0_root_N1/plex0/rg0 (normal, block checksums)

      RAID Disk	Device  	HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------	------  	------------- ---- ---- ---- ----- --------------    --------------
      dparity 	2b.01.2P3	2b    1   2   SA:B   0   SSD   N/A 611348/1252041728 611356/1252058112 
      parity  	9b.01.3P3	9b    1   3   SA:B   0   SSD   N/A 611348/1252041728 611356/1252058112 
      data    	2a.00.2P3	2a    0   2   SA:A   0   SSD   N/A 611348/1252041728 611356/1252058112 
      data    	9a.00.3P3	9a    0   3   SA:A   0   SSD   N/A 611348/1252041728 611356/1252058112

Aggregate Aggr0_root_N2 (online, raid_dp) (block checksums)
  Plex /Aggr0_root_N2/plex0 (online, normal, active, pool0)
    RAID group /Aggr0_root_N2/plex0/rg0 (normal, block checksums)

      RAID Disk	Device  	HA  SHELF BAY CHAN Pool Type  RPM  Used (MB/blks)    Phys (MB/blks)
      ---------	------  	------------- ---- ---- ---- ----- --------------    --------------
      dparity 	2b.01.0P3	2b    1   0   SA:A   0   SSD   N/A 611348/1252041728 611356/1252058112 
      parity  	9b.01.1P3	9b    1   1   SA:A   0   SSD   N/A 611348/1252041728 611356/1252058112 
      data    	2a.00.0P3	2a    0   0   SA:B   0   SSD   N/A 611348/1252041728 611356/1252058112 
      data    	9a.00.1P3	9a    0   1   SA:B   0   SSD   N/A 611348/1252041728 611356/1252058112

andris · ‎2017-12-12

Open a case with NetApp Support to investigate why the unusually small root partitioning occurred.

The root cause will need to be understood to figure out how to fix it, especially since you're in production.

mannycastillo · ‎2017-12-13

I opened a case, and the support that assit me, said that I have not record of the cli used to do this configuration so they can not figure out what happened for this. if I have a shelf with five first disk are 900g and all other 3.8 and in the other shelf four of the first disk are 900g and all other 3.8T what is the correct procedius to install root aggregate ADP on 900g only disk ?

andris · ‎2017-12-13

Please work this with your NetApp Tech Support Engineer. A community forum discussion is not appropriate, in my opinion.