ONTAP Discussions

how do I know if an aggregate is 64-bit or 32-bit, why 32-bit Snapshot got produced?

heightsnj

I have two questions and need your help with, CLI's preferred.

 

1. how do I tell if a aggreate is 64-bit or 32-bit,

2. why some of SVM created 32-snapshots, is this determined by SVM or aggregate?

 

cDOT, 8.2.1

 

Thanks for sharing!

10 REPLIES 10

JGPSHNTAP

run -node * aggr status  - make sure they all say 64-bit.  I thought cDOT was only 64bit.  

 

On one of the snapshots run -instance and paste back

 

 

heightsnj

as you can see below, the aggr is 64-bit, but the SS is 32-bit. It is required to disable 32-bit aggr when upgrade to 8.3. Again, how come 32-bit SS got produced, and by what?

 

>node run -node * -command aggr status
2 entries were acted on.

Node: node-01

           Aggr State           Status                Options
node_01_sas_aggr1 online          mixed_raid_type, aggr raidsize=22, cache_raid_group_size=8,
                                64-bit                hybrid_enabled=on
                                hybrid
  z_node_01_root online          raid_dp, aggr         root
                                64-bit

Node: node-02

           Aggr State           Status                Options
node_02_sas_aggr1 online          mixed_raid_type, aggr raidsize=22, cache_raid_group_size=8,
                                64-bit                hybrid_enabled=on
                                hybrid
node_02_sata_aggr2 online          raid_dp, aggr         raidsize=20, cache_raid_group_size=23,
                                64-bit                hybrid_enabled=on
                                hybrid

  z_node_02_root online          raid_dp, aggr         root
                                64-bit

 

====================================================================

 

snapshot -instance:

 

                              Vserver: node-nfs
                               Volume: volume_xyz
                             Snapshot: hourly.4
                        Creation Time: Tue Jun 24 16:00:30 2014
                        Snapshot Busy: false
                       List of Owners: -
                        Snapshot Size: 44KB
           Percentage of Total Blocks: 0%
            Percentage of Used Blocks: 17%
                              Comment:
             File System Block Format: 32-bit
                      7-Mode Snapshot: true
      Label for SnapMirror Operations: -
                       Snapshot State: valid
                 Constituent Snapshot: false

 

heightsnj
The volume was transitioned from 7-mode, but the question is why SS is still shown as 7-mode and 32 bit

aborzenkov
Snapshots migrated from 7-Mode likely cannot be converted - they are read-only by definition.

netappmagic
 

heightsnj

I know that.

 

My question is, once the volume got transitioned to cDOT, why those new SS produced based on the new policy on cDOT is still in 7-mode and 32-bit.

JGPSHNTAP

You showed what I wanted to confirm.. -instance shows 7-mode true, means exactly what the other poster said, made in 7-mode, 

heightsnj

Sorry, but what I dont' unerstand is that, based on the timestamp, the snapshot and also a lot of others which I did not list here have been created on cDOT filer, the most recent one was just yesterday.

 

So, why cDOT is still creating these SS?

 

aborzenkov
Could you paste volume show -instance for the volume in question? Doing it in diag mode may show even more.

heightsnj

 (volume show)

                                     Vserver Name: vs1
                                      Volume Name: volume_xyz
                                   Aggregate Name: aggr2
                                      Volume Size: 100MB
                                     Name Ordinal: base
                               Volume Data Set ID: 2014
                        Volume Master Data Set ID: 2147485664
                                     Volume State: online
                                      Volume Type: RW
                                     Volume Style: flex
                           Is Cluster-Mode Volume: true
                            Is Constituent Volume: false
                                    Export Policy: export_policy_volume_xyz
                                          User ID: 0
                                         Group ID: 0
                                   Security Style: unix
                                 UNIX Permissions: ---rwxr-xr-x
                                    Junction Path: /vol/volume_xyz
                             Junction Path Source: RW_volume
                                  Junction Active: true
                           Junction Parent Volume: vs1_root
                              Vserver Root Volume: false
                                          Comment: standalone : x.x.x.x : vfiler0 : volume_xyz
                                   Available Size: 93.93MB
                                  Filesystem Size: 100MB
                          Total User-Visible Size: 95MB
                                        Used Size: 1.07MB
                                  Used Percentage: 6%
             Volume Nearly Full Threshold Percent: 95%
                    Volume Full Threshold Percent: 98%
             Maximum Autosize (for flexvols only): 120MB
           Autosize Increment (for flexvols only): 5MB
                                 Minimum Autosize: 100MB
               Autosize Grow Threshold Percentage: 95%
             Autosize Shrink Threshold Percentage: 50%
                                    Autosize Mode: off
             Autosize Enabled (for flexvols only): false
              Total Files (for user-visible data): 3033
               Files Used (for user-visible data): 100
                           Maximum Directory Size: 40.88MB
                            Space Guarantee Style: volume
                        Space Guarantee in Effect: true
                               Minimum Read Ahead: false
                       Access Time Update Enabled: true
                Snapshot Directory Access Enabled: true
                     Space Reserved for Snapshots: 5%
                            Snapshot Reserve Used: 113%
                                  Snapshot Policy: daily
                                    Creation Time: Tue Jun 09 14:45:40 2015
                                         Language: C
                                     Clone Volume: false
                           FlexCache Cache Policy: -
                        FlexCache Minimum Reserve: -
                            FlexCache Delegations: true
                                        Node name: node-02
                               UUID of the Volume: b9c09435-0ed7-11e5-b474-123478563412
                                    NVFAIL Option: off
                          Volume's Nvfailed State: false
                        Is File System Size Fixed: false
                                    Extent Option: off
                    Reserved Space for Overwrites: 0B
                               Fractional Reserve: 100%
                       Load Sharing Source Volume: -
                               Move Target Volume: false
                          Physical Replica Volume: false
                       Maximum Write Alloc Blocks: 0
                      Snapshot Cloning Dependency: off
                     Use Unicode Directory Format: true
            Convert Directories to Unicode Format: true
                Primary Space Management Strategy: volume_grow
                         Read Reallocation Option: off
                 Inconsistency in the File System: false
                     Is Volume Quiesced (On-Disk): false
                   Is Volume Quiesced (In-Memory): false
                       Transition Operation State: none
                              Transition Behavior: none
                            Copied for Transition: false
                                     Transitioned: true
        Volume Contains Shared or Compressed Data: false
       Volume Efficiency metadata Logging Enabled: false
                Space Saved by Storage Efficiency: 0B
           Percentage Saved by Storage Efficiency: 0%
                     Space Saved by Deduplication: 0B
                Percentage Saved by Deduplication: 0%
                    Space Shared by Deduplication: 0B
                       Space Saved by Compression: 0B
            Percentage Space Saved by Compression: 0%
                      Instance UUID of the Volume: 5f8ec94a-96f0-4780-9050-a0fa56c7a494
                    Provenance UUID of the Volume: 5f8ec94a-96f0-4780-9050-a0fa56c7a494
                                       Block Type: 64-bit
                      FlexCache Connection Status: -
  Virtual Machine Alignment 512-Byte Sector Count: -
                 Virtual Machine Alignment Suffix: -
                                 Is Volume Moving: false
                   Flash Pool Caching Eligibility: read-write
    Flash Pool Write Caching Ineligibility Reason: -
                       Managed By Storage Service: -
                             Storage Service Name: -
Create Namespace Mirror Constituents For SnapDiff Use: -
         Action When Attributes Are Not Reachable: -
                          Constituent Volume Role: -
            Maximum Size of Namespace Constituent: -
            Maximum Size of Each Data Constituent: -
                              Directory Bit Width: -
                            QoS Policy Group Name: _Performance_Monitor_volumes
                  Is Volume Move in Cutover Phase: false
          Number of Snapshot Copies in the Volume: 83

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