migration performance slow

[ivan]

Hi all,

i would like to ask a question about performance.
The controller card has 3 ports but we got shipped just 1 cable so we was able to connect only 8 devices. It was

proposed that the customer gets the box as soon as possible and the remaining disk will be added later on in the

field.
Initialy we created a raid6 unit u0 from the first six physical disk.It took cca 10 hours to complete the build.
After the build was finished we started the migration of the 2 unassigned disks to check the time required for

migration and that nothing gets wrong when the box is in production.

The migration of (p6,p7) started on sunday, now is tuesday 04.12. and we have only some 60% migrated...
It was a fresh install w/o data.
btw. the customer wants to see the whole as one consecutive space (u0)


Question is: what might we expect if get those 2 missing cables and connect the remaining 16 disks and migrate them

to existing log.unit ?


------------------------------------------------------------------------
Configuration:
Supermicro R900B Rack
Supermicro XLDBE MainBoard
3ware 9650SE-24M8 Raid controller

Model: Open-E NAS-R3
Version: 4.32.DB00000000.2862
Licensed storage capacity: 24 TB
------------------------------------------------------------------------
//NAS/c1> info

Ctl Model Ports Drives Units NotOpt RRate VRate BBU
------------------------------------------------------------------------
c1 9650SE-24M8 24 8 1 1 1 1 OK
//NAS/c1> show

Unit UnitType Status %RCmpl %V/I/M Stripe Size(GB) Cache AVrfy
------------------------------------------------------------------------------
u0 Migrator MIGRATING - 61 - 3725.25 ON OFF

Port Status Unit Size Blocks Serial
---------------------------------------------------------------
p0 OK u0 931.51 GB 1953525168 9QJ00W3B
p1 OK u0 931.51 GB 1953525168 9QJ00R6K
p2 OK u0 931.51 GB 1953525168 9QJ00L95
p3 OK u0 931.51 GB 1953525168 9QJ00L5S
p4 OK u0 931.51 GB 1953525168 9QJ00Q3A
p5 OK u0 931.51 GB 1953525168 9QJ00SMZ
p6 OK u0 931.51 GB 1953525168 9QJ01CSX
p7 OK u0 931.51 GB 1953525168 9QJ01CTW
p8 NOT-PRESENT - - - -
p9 NOT-PRESENT - - - -
......
p23 NOT-PRESENT - - - -


Thanks Ivan

[SuperSAN]

Ivan;

First, 10 hours for building RAID is longer than normal. Especially you are using 3Ware new controller that should build RAID faster than the old ones. Also, 2 days for migration is also not right.
Did you update your HDD's to the latest firmware? If everything upgraded I will recommend calling 3Ware and clarify with them.
And if you got the 2 missing cables, it seems you are going to have the same long waiting time. So I will start checking and diagnose the problem

Let me know what happened??