Hello Darren, Tuesday, December 12, 2006, 2:10:30 AM, you wrote:
>> A while back we had a Sun engineer come to our office and talk about >> the benefits of ZFS. I asked him the question "Can the uber block >> become corrupt and what happeneds if it does?", to which he did not >> have the answer but swore to me that he would get it to me. I still >> haven't gotten that answer and was wondering if someone here could >> enlighten me? DD> Any data can become corrupt through a variety of processes. DD> To reduce the chance of it affecting the integrety of the filesystem, DD> there are multiple copies of the UB written, each with a checksum and a DD> generation number. When starting up a pool, the oldest generation copy DD> that checks properly will be used. If the import can't find any valid DD> UB, then it's not going to have access to any data. Think of a UFS DD> filesystem where all copies of the superblock are corrupt. Actually the latest UB, not the oldest. -- 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
