Hello, As I understand it, in a traditional RAID 5 setup adding new disks to the pool provides more overall I/O as the load is spread out across multiple disks.
What exactly is this relationship in a RAID-Z setup? What should one expect in terms of overall I/O performance as disks are added and/or removed? I understand that the checksum data is distributed across all disks, unlike a traditional RAID setup. Does this carry a significant performance hit? As far as distribution of parity data/leveling, is there some sort of buffer or some sort of means to give new writes priority over this distribution of data? Any general information you can provide me as far as the theoretical concepts behind increasing I/O by adding disks to a RAID-Z pool would be appreciated as I assess this technology :) Thanks in advance! -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
