VNX5400 VAULT disk utilization

Question

Hello, what is your experience with utilization of VAULT drives (disk 0-3 in DPE0/DAE0) in VNX2 series? In my particular case, there is quite high utilization of disks 0-2 - see picture bellow. It is VNX5400 block Flare33 with enabled services like FAST, FAST Cache, Thin provisioning and Block deduplication. Vault drives are 600GB SAS 10k. Thanks for any comments, reactions, suggestions. Lukas.

Roger_Wu · Answer

The vault disk layout is like below. There are several reserved space (for File System LUNs) on disk 3, so disk 0-2 would be more busy.

benconrad1 · Answer

I have (2) 7600's that have stats logging set at 60 seconds and on both the vault disks are doing about 150 IOPS!!! (All day) and about 7ms latency. I looked at a 5300 with stats logging @ 60 seconds and they are doing about 3 IOPS.

Ben

brettesinclair · Answer

Sounds very high Ben. Does it calm down if you disable data logging ? (temporarily)

shofmannn · Answer

Just to add more information. Here are the "Internal Flare Raidgroups" ( except SP Bootluns.... )

FBECLI

- - - 8192 1000 SAS RAID-1 - - 8.1 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 PSM

- - - 8193 1000 SAS RAID-1 - - 101.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 EFD Cache

- - - 8194 1000 SAS RAID-1 - - 202.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 L1 Cache

- - 63999 8199 1000 SAS RAID-1 - - 22.3 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 NAS LUN 0

- - 63998 8200 1000 SAS RAID-1 - - 11.2 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 NAS LUN 1

- - 63997 8203 1000 SAS RAID-1 - - 4.1 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 NAS LUN 4

- - - 8205 1000 SAS RAID-1 - - 1.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 DDBS Library

- - - 8206 1000 SAS RAID-1 - - 16.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 BIOS Firmware Jetfire

- - - 8207 1000 SAS RAID-1 - - 16.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 POST Firmware Jetfire

- - - 8208 1000 SAS RAID-1 - - 101.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 GPS Firmware Jetfire

- - - 8209 1000 SAS RAID-1 - - 32.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 BMC Firmware Jetfire

- - - 8210 1000 SAS RAID-1 - - 16.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 BIOS Firmware Megatron

- - - 8211 1000 SAS RAID-1 - - 16.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 POST Firmware Megatron

- - - 8212 1000 SAS RAID-1 - - 101.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 GPS Firmware Megatron

- - - 8213 1000 SAS RAID-1 - - 32.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 BMC Firmware Megatron

- - - 8214 1000 SAS RAID-1 - - 16.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 BIOS Firmware Futures

- - - 8215 1000 SAS RAID-1 - - 16.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 POST Firmware Futures

- - - 8216 1000 SAS RAID-1 - - 101.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 GPS Firmware Futures

- - - 8217 1000 SAS RAID-1 - - 32.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 BMC Firmware Futures

- - - 8218 1000 SAS RAID-1 - - 1.0 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 MCR Database

- - - 8219 1000 SAS RAID-1 - - 50.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 RAID Metadata LUN

- - - 8220 1000 SAS RAID-1 - - 50.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 RAID Metastatistics LUN

- - - 8221 1000 SAS RAID-1 - - 1.0 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 MLU DB LUN

- - - 8225 1000 SAS RAID-1 - - 50.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 Unknown

- - - 8195 1001 SAS RAID-5 - - 1.0 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 CPL-A

- - - 8196 1001 SAS RAID-5 - - 1.0 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 CPL-B

- - - 8197 1001 SAS RAID-5 - - 129.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 WIL-A

- - - 8198 1001 SAS RAID-5 - - 129.0 MB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 WIL-B

- - 63996 8201 1001 SAS RAID-5 - - 2.0 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 NAS LUN 2

- - 63995 8202 1001 SAS RAID-5 - - 2.0 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 NAS LUN 3

- - 63994 8204 1001 SAS RAID-5 - - 65.0 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 NAS LUN 5

- - - 8224 1003 SAS RAID-3 - - 121.9 GB RW- SP-A ENA 0.0.0 0.0.1 0.0.2 0.0.3 Vault

VNX

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