>> In our recent experience RAID-5 due to the 2 reads, a XOR calc and a >> write op per write instruction is usually much slower than RAID-10 >> (two write ops). Any advice is greatly appreciated. > > RAIDZ and RAIDZ2 does not suffer from this malady (the RAID5 write hole).
1. This isn't the "write hole". 2. RAIDZ and RAIDZ2 suffer from read-modify-write overhead when updating a file in writes of less than 128K, but not when writing a new file or issuing large writes. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
