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Asked by KTN-IT in Storage Technology, Sun Solaris, Computer Servers
This question is more for my learning than it is to find a "fix it" solution to a problem, so all helpful responses will receive points.
I have a Dell Poweredge 2600 server with a perc raid controller. I have always liked to use raid 5 for my servers, so in case of single drive failure I won't lose anything. Recently I have read about Solaris' raid-z and how it eliminates the problem of the "write hole" for raid 5.
Does anyone have experience with raid-z (and ZFS)? Is it really all it's cracked up to be? Is it really more for read-intensive applications because any time you write you have to write a whole stripe? Is the raid-5 write hole really a substantial risk (does someone have an experience with data corruption in raid 5?)
I realize these are a lot of questions, but they are all related to the topic and I'm wondering whether or not to move my file server over to Solaris and raid-z.
20091111-EE-VQP-89 - Hierarchy / EE_QW_3_20080625