5 ms·

Its still that way, the netflix guys get a lot of press for their bandwidth numbers but plenty of backup systems were getting similar (or greater) bandwidth num

Its still that way, the netflix guys get a lot of press for their bandwidth numbers but plenty of backup systems were getting similar (or greater) bandwidth numbers years ago, since many of the caching stacks are basically pcie or mem bandwidth limited. The 300MB/sec number the author lists is really slow, and likely appropriate for LTO3/4, (IIRC, the wikipedia numbers are understated) LTO7+ can peak at > 1GB/sec with the modern drives going even faster if the compression is left enabled. So, given a library with a few dozen drives, the bandwidth gets insane. (ex: SL8500)

trasz 5y ago
Someone should ask Spectra Logic folks for their numbers :-) (Spectra Logic's tape libraries run FreeBSD too.)
- monocasa 5y ago
  SpectraLogic's code isn't in the data plane, you hook up to the drives directly, and the drives can forward changer requests to the internals of the library. So it's however fast the drives are (which are all third party). Also last I checked freebsd was used for their disk product, not tape.