Correction the raidgroupsize setting will change but if you have already multiple raid groups THIS will not be change
-----Ursprüngliche Nachricht----- Von: Engmann, Tobias Gesendet: Mittwoch, 30. Juni 2004 19:27 An: 'Brubaker, Paul' Cc: toasters@mathworks.com Betreff: AW: Raid DP conversion?
Just set the raidlevel from raid4 to raid dp
vol options "volname" raidtype dp
the filer will grap a spare and do a reconstruct on it
the Raidgroupsize will NOT change !
cheers
tobias -----Ursprüngliche Nachricht----- Von: Brubaker, Paul [mailto:paul.brubaker@attws.com] Gesendet: Mittwoch, 30. Juni 2004 18:48 An: toasters@mathworks.com Betreff: Raid DP conversion?
Question on Raid 4 vs. Raid DP. We just upgraded to Ontap 6.5.1 and the new feature of Raid DP is now present. Our existing volumes created on Ontap 6.4.2 are setup as Raid 4. Is there any "easy" conversion process to change the old Raid 4 volumes to the newer Raid DP config? Any benefits? Advice? Best practices?
thanks! Paul M. Brubaker, Jr. RIDS - Intel System Support AT&T Wireless - Harrisburg PA e-mail: paul.brubaker@attws.com office #: 717-526-5011 cell #: 717-578-2254
Does anyone on the list have experience with RAID group size limits?
I seek to convert my qty 5 small volumes for Oracle into qty 2 volumes (one big, one little) for oracle and use lots of spindles. In fact, I'd like to just do a big, giant volume on my filer and put everything in qtrees shared/exported.
Anyone out there done this yet? Hit any RAID size limits?
Thx; JKB
raid size limit was 28 disks in previous version of ontap i'm not sure if it had or not change to 14 now with 36G disk, you can set a 14 disk raid size if you really want 28, you can consider using a double parity you should not experience any performance penality when using double parity : << Depending on the type of write, performance on RAID DP can be about 2% to 3% slower than that of RAID4.
in http://www.netapp.com/tech_library/3298.html#5.6.
James Brigman wrote:
Does anyone on the list have experience with RAID group size limits?
I seek to convert my qty 5 small volumes for Oracle into qty 2 volumes (one big, one little) for oracle and use lots of spindles. In fact, I'd like to just do a big, giant volume on my filer and put everything in qtrees shared/exported.
Anyone out there done this yet? Hit any RAID size limits?
Thx;
JKB
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Engmann, Tobias -
James Brigman -
Stephane Bentebba