Author Topic: Unable to add second Parity Drive using Cruise Control Real-Time RAID  (Read 1701 times)

Offline Yotta

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Unable to add a second Parity Drive on initial setup using Cruise Control with Real-Time RAID  v2.0u11-test5 final. After the first Parity drive is added, I no longer see PPU as an option when I try to add a second parity drive to the Storage Pool, only DRU. I did have a test configuration earlier using a single Parity drive. I deleted that configuration, uninstalled FlexRAID, rebooted the system, then reinstalled FlexRAID. Any thoughts?

Offline lrissman

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Re: Unable to add second Parity Drive using Cruise Control Real-Time RAID
« Reply #1 on: December 12, 2012, 06:47:34 pm »
AFAIK only 1 ppu in RT raid.   

http://forum.flexraid.com/index.php/topic,433.msg3779.html#msg3779

and several others asking about this. 

Offline Yotta

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Re: Unable to add second Parity Drive using Cruise Control Real-Time RAID
« Reply #2 on: December 12, 2012, 07:17:19 pm »
http://wiki.flexraid.com/about/1355-2/...
FlexRAID provides N+1 and N+X parity data protection through various RAID engines, both in Snapshot and Real-Time mode.

My configuration lists a T1+ engine, which ...supports a maximum of one PPU (parity) drive.
The T2+ engine...requires exactly two PPUs (parity).
The Tx engine...supports an infinite (1 to ∞ ) number of PPUs (parity).
So, how do I use either T2+ engine or Tx engine with Real-Time RAID as the WIKI above states?

Offline DrBlaze

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Re: Unable to add second Parity Drive using Cruise Control Real-Time RAID
« Reply #3 on: December 12, 2012, 07:31:17 pm »
At present RT is still experimental, and is limited for now to 1 PPU until it becomes more stable.  Hopefully someone will see this thread and fix that wiki article.

Online vestige

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