>If there were a real-world device that tended to randomly flip bits, >or randomly replace swaths of LBA's with zeroes, but otherwise behave >normally (not return any errors, not slow down retrying reads, not >fail to attach), then copies=2 would be really valuable, but so far it >seems no such device exists. If you actually explore the errors that >really happen I venture there are few to no cases copies=2 would save >you.
I had a device which had 256 bytes of the 32MB broken (some were "1", some were always "0"). But I never put it online because it was so broken. Casper _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss