Re: recovered data (Alice Givan)
Leon Martin (martin@cobra.path.monash.edu.au)
Thu, 10 Jun 1993 13:26:00 +1000
Alice,
>
>In addition, he suggested that we not use the hfs format for our bernoullis
>-- but convert them to LIF format. LIF format does not utilize
>sub-directories but stores all files in one long series. This means that you
>cannot structure your data storage, but there is, evidently, improved disk
>performance because of less I/O activity (and, in addition, this frees
>about 3Mbytes more storage space on the cartridge).
>
I can certainly vouch for this speed increase.
On both our HP340 & HP310 we run pascal 3.22 systems (set up as per BD
installation floppies). We use a small disk as the #11: system disk (either
a 15, 20 or 40 Mbyte) and delete most of the subdirectories. We ONLY keep
programs on this disk. For data file storage we use a second disk (81
Mbyte) formatted as LIF volumes. Acquiring, copying, deleting etc. etc. to
these volumes is infinitely faster than using an HFS disk. If you read the
HP books, it is interesting to note that, when setting up an HFS disk
(under pascal), a small LIF volume is put on first and then HFS is added!
On the 310, we even have all BD's old programs (C30, FACScan Research etc)
loaded on one of the LIF volumes for occasional use.
If you wanted your programs to load a bit faster you could even try setting
up the system volume as LIF and then load BD's software. I haven't done
this yet but intend to try it soon. I have even seen LYSYS II running from
a LIF disk under pascal 3.1!
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Leon Martin Department of Pathology Monash University Australia
martin@cobra.path.monash.edu.au +61 3 276 2601 Fax +61 3 529 8359
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