Re: [zfs-discuss] (Fletcher+Verification) versus (Sha256+No Verification)

Hey there, >> ~= 5.1E-57 > > Bah. My math is wrong. I was never very good at P&S. I'll ask someone at > work tomorrow to look at it and show me the folly. Wikipedia has it right, > but I can't evaluate numbers to the few-hundredth power in any calculator > that I have handy. bc -l

Re: [zfs-discuss] Need a link on data corruption

Hi, > Someone posted about CERN having a bad network card which injected faulty > bits into the data stream. I've regularly heard people mention data corruption in network layer here - and other physics sites like FNAL and SLAC - but I don't have details of any specific incident. We do see our

Re: [zfs-discuss] zfs send/receive as backup - reliability?

Hi, > .. it's hard to beat the convenience of a "backup file" format, for > all sorts of reasons, including media handling, integration with other > services, and network convenience. Yes. > Consider then, using a zpool-in-a-file as the file format, rather than > zfs send streams. This is an i

Re: [zfs-discuss] zfs send/receive as backup - reliability?

Hi, > Here is the big difference. For a professional backup people still typically > use tapes although tapes have become expensive. > > I still believe that a set of compressed incremental star archives give you > more features. Thanks for your comments! I think I roughly understand the featu

Re: [zfs-discuss] zfs send/receive as backup - reliability?

Hi, >> I am considering building a modest sized storage system with zfs. Some >> of the data on this is quite valuable, some small subset to be backed >> up "forever", and I am evaluating back-up options with that in mind. > > You don't need to store the "zfs send" data stream on your backup medi

[zfs-discuss] zfs send/receive as backup - reliability?

Hi, I am considering building a modest sized storage system with zfs. Some of the data on this is quite valuable, some small subset to be backed up "forever", and I am evaluating back-up options with that in mind. My understanding is that zfs send approximately captures the copy-on-write file