Right.
Pretty much all of this very long discussion centers on one concept: the old adage "as strong as the weakest link". Only in this case, it's as fast as the slowest link.
Glenn
-----Original Message----- From: maclean@cs.mcgill.ca [mailto:maclean@cs.mcgill.ca] Sent: Thursday, September 21, 2006 5:00 PM To: Stephen C. Losen Cc: maclean@cs.mcgill.ca; Glenn Walker; toasters@mathworks.com Subject: Re: Mixed disk sizes within a single aggregate
Actually Netapp told us it's not a problem to replace a slower drive with a faster one. It's not good if you have a RG of fast drives to replace one with a slower drive, because that drags down the whole RG.
Yeah a read would have to wait for the slower disk to spin around to the proper block while all the faster disks have already provided the data.
-Matthew