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- Submitted-by: gwyn@smoke.brl.mil (Doug Gwyn)
-
- In article <1991Aug31.202615.11996@uunet.uu.net> karish@pangea.stanford.edu (Chuck Karish) writes:
- >512 bytes has been a standard block size for tape and disks for
- >far longer than BSD and System V have existed.
-
- Not really. On PDP-11s, 512B was indeed a standard disk block size.
- That doesn't mean it also was standard or even common on other
- platforms, even from DEC, or for magtape, which has been blocked in
- a variety of fixed or variable record lengths for as long as I can
- remember, which is at least 20 years.
-
- I've seen small systems recently with 256B disk block sizes. There
- are also still some systems with word sizes not an exact multiple of
- 8 bits, on which disk blocks are some integral number of words.
-
- I like to express sizes in bits, since that is always feasible.
-
- Volume-Number: Volume 24, Number 89
-
-