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- Newsgroups: comp.sys.amiga.applications
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!paladin.american.edu!news.univie.ac.at!chx400!bernina!neptune!umueller
- From: umueller@iiic.ethz.ch (Urban Dominik Mueller)
- Subject: Re: IS XPK SAFE?
- Message-ID: <1992Nov15.194207.7894@neptune.inf.ethz.ch>
- Sender: news@neptune.inf.ethz.ch (Mr News)
- Nntp-Posting-Host: c11
- Organization: Swiss Federal Institute of Technology (ETH), Zurich
- References: <Bxnwv6.At@javelin.sim.es.com>
- Date: Sun, 15 Nov 1992 19:42:07 GMT
- Lines: 52
-
- Author speaking... It is very valid to ask for XPK's safety. Genreally, XPK
- seems stable; but I'd never compress anything that you cannot replace or
- absolutely need. On the other hand, things like your private module collection
- seem a to be a good candidate for compression.
-
- In article <Bxnwv6.At@javelin.sim.es.com> dingebre@imp.sim.es.com (David Ingebretsen) writes:
- >
- >I'm very impressed with the XPK package and the XFH and XPK-handler
- >file systems. BUT how reliable are they?
- >
- >If you use/have used either of these, I would appreciate you thoughts.
- >
- >1. Have you ever lost data?
-
- No reports of data loss because of XPK bugs have reached me so far. In
- case it happens to anyone out there, please report immediately as to
- save others from suffering the same problem. Of course there are imminent
- problems with storing files in packed format: A single corrupted bit
- will usually trash the whole files.
- Also, you'll have to differ between the packers. NUKE and BLZW are the
- oldest ones and can be considered pretty safe. I do test new packers
- before adding them to the release archive, but only practice shows
- if they really work 100% flawlessly.
-
- >2. Was it obnoxious in any way?
-
- Sorry, my English isn't good enough for that one :)
-
- >3. Would you do it differently if given another chance?
-
- I guess I'm not the one to answer this...
-
- >4. Which handler would you recommend?
-
- Both have their drawbacks. Xpk-Handler is new to this release and thus pretty
- untested. XFH has a bug that can cause crashes when ExAll() is used on it
- (like MagicFileRequester does). Neither of them can open files in
- MODE_READWRITE as used when updating files. In general, I would use the
- handlers on partitions/directories that are written to only infrequently,
- and never for places where your own work (pictures, texts, sources) are
- stored.
-
- >5. Do you back up your data in the compressed format?
-
- If you mean backuping the underlying DH3: instead of XFH:, then certainly.
- If you mean compressing before backuping, there's only one program that
- does it so far: KwikBackup. I would probably use compression if the backup
- drive is slow and the CPU is fast. Good backup programs should offer a
- verify mode in that re-reads and re-decompresses, and they should work
- with independent chunks so a read error doesn't trash the whole disk.
-
-
-