From Newsgroup: comp.sys.ibm.pc.hardware.storage
Lynn McGuire <
lynnmcguire5@gmail.com> wrote:
Percival P. Cassidy wrote:
https://gizmodo.com/a-new-breakthrough-in-tape-storage-could-squeeze-580-tb-1845851499
Serial access devices are so 1980s / 1990s.
Um, SATA = Serial ATA using 2 differential condutors (versus the prior
PATA = Parallel ATA using 40 wires, or 80 with grounding lines between
to reduce crosstalk).
I will take random access devices any day of the week.
Who said tape drives should be used for primary storage? Only a boob
would do that. Tapes are used for archival storage (aka backups). Even
with your HDDs or SSDs, restoring from a backup image will be
sequential, just like on tape.
How big are your backup files? 317 GB per 1 square-inch of tape means
the tape won't take long to position to the start of the next backup
file. Besides, do you sit around waiting for a restore to finish, or do
you start it, and go do something else? If the latter, you don't care
how long it takes the tape to position to the start of your backup file
if not the first one on the tape.
Go ahead and build that tower of 50 HDDs (since SSDs would be far too expensive) and suffer the reduced MTBF (the more drives, the lower the
MTBF) instead of using 1 tape drive.
Also, please stop posting about technologies that won't be available for another decade to the consumer market, the primary community here.
Corporate users deploying backup systems don't visit here. They use
robots, tape towers, and have massive backup storage space, not just a
single drive with a single tape.
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