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- Path: inforamp.net!usenet
- From: wjustice@inforamp.net (wjustice)
- Newsgroups: comp.sys.amiga.applications
- Subject: Re: "AFS" Ami-File Safe
- Date: 17 Mar 1996 02:55:28 GMT
- Organization: InfoRamp Inc., Toronto, Ontario (416) 363-9100
- Message-ID: <6050.6649T1247T607@inforamp.net>
- References: <19960311.7C0D950.3537@ccubb.com>
- NNTP-Posting-Host: ts47-09.tor.inforamp.net
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP) *UNREGISTERED*
-
- Hi David!
-
- >On Fri 8-Mar-1996 4:19a, wtamm wrote:
-
- Sorry for the late reply to your kindly, thorough answer.
-
- >w> Anyone with first-hand, second-hand, fifth-hand, whatever experience
- >w> and//or comments on the AFS; could you please tell me about your
- >w> experiences?
-
- >So far, my experiences haven't been very positive. I bought the critter
- >before last Christmas. I installed it on my system. (Stock A4000/040 with
- >3gigs of storage and 18 megs of ram) As I run a 24hr bbs both on and off the
- >net, anything that might increase performance was a "godsend". I bought AFS
- >in the hope of improving the "hashing" FFS demonstrated when dealing with
- >directories with file number > 500 files per directory.
-
- >My Stock A4000 which would allow me to have up to 8 users online the same
- >time
- >(running about 200 tasks) under FFS ran resonably well. The CPU usage wasn't
- >quite maxed out and response time to users was excellent. Under AFS, my
- >system useage was continually 100% and if more then 3 users where online, the
- >system became UNUSEABLE.
-
- It's these very kind of experiences//stats that I've been looking for.
-
- Out of approximately 15 direct replies to date; only one has been totally
- encouraging; and that user wasn't concerned with more than the speed of
- single user read-writes. Nonetheless, he had very intelligent advice, having
- been an "AFS" user since its original shareware versions ('Pro-File
- System'...what was it called....didn't seem to apply to me at the time, so
- I never looked into it.)
-
- All other responses ranged from..."Wait a while to... "Amiga UNsafe File"
- system; obvioulsy some bad experiences out there.
-
- Trying to look at AFS from the perspective of a moderately experienced user,
- and not relying only on demoes,etc. I have found that the majority of
- replies, from users, have been thorough and well though out, with few
- complaints of "I tried the included install script" and now I've lost my
- whole drive." However, I must say that there has been a common thread of
- complaint about lack of not just documentation, but theory as to what "AFS"
- is doing, so that the new user feels more secure about facing inevitable
- problems.
-
- >Now in fairness to AFS, they claim that "due to the design of our filesystem,
- >writing lots of SMALL files can be slower". It appears to be a know bug
- >which they claim to have addressed. I am now told that I can try their
- >"beta" software (which has killed many a hard-drive) or pay them some more $$
- >and get a version which MIGHT be useable. Another problem which has been
- >ignored by AFS, is it can't support LOTS of files. I have a partition which
- >had MOST of Aminet on it. When trying to copy it onto my "newly formatted"
- >AFS drive (2 gig partition), I ran out of disk space after only filling it 5%
- >full.
-
- Is it just me, or have a noticed an "on again-off again" relationship between
- Fourth Level Developments and IAM (especially D. Haynie). Seems, one month
- they're working on providing some mutual compatibility; the next.....
-
- >w> really eager to try out this technically good sounding file system,...
- .....<<snip>>...
-
- I guess I forgot to add that I wished Disk Salve could provide some salvage
- support to AFS formatted drives//partitions.
-
- >Yes, I to have enjoyed those programs. I personally prefer the AmiBack
- >versions over the Quarterback. I have had little success with Quarterback on
- >large partitions (over 1 gig in size). Amiback however works flawlessly.
-
- While our household is pretty "maxed out" with circa 1988 to 1994 Amiga
- hardware (ie. 3XA4000/040's all maxed out in memory; an 040 accelerated
- A2000, an 030@25Mhz A3000T, several A2500/030's etc....the largest single
- hard drive(s) that we have are two 425MB SCSI Quantums. (I paid $1100 CDN,
- each for them, back in 1990!)
-
- We have an incredible collection of 120, 240, etc SCSI's daisy-chained
- together, usually in separate cases for space, cooling and power), as well
- as all manner of pysical SCSI cable (through switchboxes) to good-old-
- fashioned Paranet that usually gives each machine access to a little over
- a Gig, but never, on one drive.
-
- In the case of our three AGA machines (all A4000T's), we've kept the original
- 120MB IDE's as boot drives and added "second hand" SCSI cards for CD-ROM,
- Syquest, SCSI HD's. Would you believe that a Supra 'Word Sync' can transfer
- at 1.5MB/Sec (about .7Mb/Sec for the standard IDE's) with no DMA contention.
- My own 4000 and my youngest son's (he's 13 and spends 75% of his computer time
- on lightwave renderings) both use these Supra cards.
-
- My eldest son (14 1/2; he has a GVP 4008 SCI controller; now that thing has
- DMA problems and gives new meaning to the word "multi-task" (don't look at
- your keyboard, much less touch it when it's trying to capture the bus.)
- Seriously, it gets the job done for my boy, we should be looking into the
- Guru-ROM and you shouldn't expect miracles on a limited budget). (Buster, et
- all the obvious stuff are updated to Rev11).
-
- Despite not having thrown a large HD at Quarterback; quite frankly we've
- all pretty much settled on Ami-Back and our odd HD configs (I didn't mention
- the 44 and 88MB syquests and the 150MB C=3070 tape drive) have never been
- confused by it.
-
- UNfortunately on our 3.0 and 3.1 A4000's it cannot optimize a partition
- without crashing //losing date part way through and not so bad, but a
- curiosity, it can never quite (even a simple read of the SCSI buses)
- without causing a system software failiure. No problem on 2.04 ROMS.
-
-
- >w> system, most intuitive platform on the market. Am I being too cowardly;
- >w> or am I reading between the lines in messages I've received?
-
- >No, I would say you aren't. While I hate to admit it, AFS isn't a piece of
- >software that I would reccomend to friends UNLESS they are running on a
- >accellerated Amiga. The success stories of AFS appear to be on systems with
- >CPU's running > 25mhz. (A local sysop has it running on a 50mhz)
-
- Thanks for all of your comments.
-
- Willy Tamm Scarborough ('burb') of Toronto, ON, CAN
- ........... wjustice@inforamp.net
-
-