Hello Anton, Saturday, January 6, 2007, 6:29:29 AM, you wrote:
>> It's not about the checksum but about how a fs block is stored in >> raid-z[12] case - it's spread out to all non-parity disks so in order >> to read one fs block you have to read from all disks except parity >> disks. ABR> However, if we didn't need to verify the checksum, we wouldn't ABR> have to read the whole file system block to satisfy small reads. But we'll loose end-to-end integrity feature. And still with 9 or more disks for most workloads we would endup reading them all anyway as each disk would hold so small portion of fs block. -- Best regards, Robert mailto:[EMAIL PROTECTED] http://milek.blogspot.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
