45 lines
1.5 KiB
Plaintext
45 lines
1.5 KiB
Plaintext
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STAC ELECTRONICS
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TECHNICAL SUPPORT BULLETIN
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NUMBER: 009
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SUBJECT: CACHE
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DATE: May 24, 1991
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TIME: 3:00 PM
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SOURCE: Engineering, Tech Support
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SUPERCEDES/
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SUPERCEDED BY:
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RELEASE STATUS: Public
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TITLE:
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STACKER and disk-cache programs.
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OVERVIEW:
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While STACKER includes its own cache, the driver is compatible with other
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products that perform the same function.
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Norton's NCACHE and Microsoft WINDOWS' SMARTDRV.SYS are loaded from the
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CONFIG.SYS, usually before STACKER. Other programs, such as PC-KWIK and
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PC-CACHE, load from the AUTOEXEC.BAT file, after STACKER.
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ISSUES/COMMENTS:
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1) Some cache programs (e.g., PC-CACHE, PC-KWIK) may report that a
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particular drive letter is not eligible for caching, but caching proceeds
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normally.
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2) When multiple cache programs are operating, disk reads/writes may have
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unpredictable results. Use of memory may also be negatively impacted.
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RECOMMENDED ACTIONS:
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1) Alter the settings for the cache so that the uncompressed, host drive
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is cached. This will, by extension, cache any STACKER volumes residing
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on it. (The PC-KWIK message can be avoided by excluding the STACKER
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volume when the cache program is invoked. Consult PC-KWIK documentation
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for the appropriate parameter.)
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2) If a commercial cache program is running, specify a STACKER cache of 0
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bytes (/M=0)
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