st%trillian.irb@unido.uucp (Stefan Timphus) (05/09/89)
Has anybody experience with a Harddisk-Controller called
PS-180 or Perstor-180.
It is advertised to format a Seagate ST-4096 to 146 MB (instead of 80).
Please let me know how whether this really works.
Stefan Timphus
st@trillian.irb.informatik.uni-dortmund.dekeithe@tekgvs.LABS.TEK.COM (Keith Ericson) (05/11/89)
In article <1349@laura.UUCP> st%trillian.irb@unido.UUCP (Stefan Timphus) writes: >Has anybody experience with a Harddisk-Controller called >PS-180 or Perstor-180. >It is advertised to format a Seagate ST-4096 to 146 MB (instead of 80). >Please let me know how whether this really works. I evaluated the Perstore "ARLL" (Advanced RLL) controller and decided against it in favor of (an Adaptec) standard RLL that can achieve a 1:1 interleave and hence higher transfer rate to/from the disk. As I recall the ARLL was priced noticable higher than the RLL (although I can't recall exactly how much right now, but this is inews fodder so my followup doesn't get rejected, anyway, so who really cares, eh?) kEITHe
rkaplan@medsoft.uucp (Richard Kaplan) (05/14/89)
ST>From: st%trillian.irb@unido.uucp (Stefan Timphus) ST>Date: 9 May 89 09:45:01 GMT ST>Organization: Universitaet Dortmund ST>Message-ID: <1349@laura.UUCP> ST>Has anybody experience with a Harddisk-Controller called ST>PS-180 or Perstor-180. ST>It is advertised to format a Seagate ST-4096 to 146 MB (instead ST>of 80). ST>Please let me know how whether this really works. Yes, this really works. I've used the Perstor drive with my ST-4096 for 10 months now. -- Richard Kaplan - via FidoNet node 1:135/3 Medical Software Exchange BBS (305) 325-8709 UUCP: ...uunet!gould!umbio!medsoft!rkaplan ARPA: rkaplan@medsoft.uucp
rkaplan@medsoft.uucp (Richard Kaplan) (05/14/89)
KE>From: keithe@tekgvs.LABS.TEK.COM (Keith Ericson) KE>Date: 10 May 89 20:16:11 GMT KE>Organization: Tektronix, Inc., Beaverton, OR. KE>Message-ID: <5112@tekgvs.LABS.TEK.COM> KE>Newsgroups: comp.sys.ibm.pc KE>I evaluated the Perstore "ARLL" (Advanced RLL) controller and KE>decided against it in favor of (an Adaptec) standard RLL that KE>can achieve a 1:1 interleave and hence higher transfer rate What you say is true, but I believe the original author was concerned with disk capacity. If this is one's priority in selecting a controller, then an ARLL controller is best for the job. -- Richard Kaplan - via FidoNet node 1:135/3 Medical Software Exchange BBS (305) 325-8709 UUCP: ...uunet!gould!umbio!medsoft!rkaplan ARPA: rkaplan@medsoft.uucp
root@consult.UUCP (Super user) (05/15/89)
In article <1349@laura.UUCP> st%trillian.irb@unido.UUCP (Stefan Timphus) writes: >Has anybody experience with a Harddisk-Controller called >PS-180 or Perstor-180. >It is advertised to format a Seagate ST-4096 to 146 MB (instead of 80). >Please let me know how whether this really works. .. I have a PS-180 using a Seagate 4096 on our BBS system on an AT clone. Runs very very well. Kinda of a pain to setup. Very time consuming and the docs are marginal. But it does work. Gives about 123mb instead of 146 as advertisded, but that was not a problem for us, as 123 is still MUCH better than 80mb. .. You will need some sort of utility like Ontrack Disk Manager to effectivly use the entire disk as a single drive. Again it's docs are shaky, but it does work. .. Just be prepared for a few hours work, and MAKE SURE you system is well backed up. .. Speed is pretty good, and reliability has been excellent. we have been running for about 6 months now, with NO problems. (Murphy don't listen to that!!!)..... .. ,,, bob willey ,,, CCS Tech Support BBS (301) 476-5098 ..
gatesl@romana.cs.orst.edu (Lee Ryan Gates) (05/16/89)
>In article <1349@laura.UUCP> st%trillian.irb@unido.UUCP (Stefan Timphus) writes >>Has anybody experience with a Harddisk-Controller called >>PS-180 or Perstor-180. >>It is advertised to format a Seagate ST-4096 to 146 MB (instead of 80). > >.. I have a PS-180 using a Seagate 4096 on our BBS system on an AT >clone. Runs very very well. Kinda of a pain to setup. Very time consuming >and the docs are marginal. But it does work. Gives about 123mb instead of >146 as advertisded, but that was not a problem for us, as 123 is still MUCH >better than 80mb. >You will need some sort of utility like Ontrack Disk Manager to >effectivly use the entire disk as a single drive. >Speed is pretty good, and reliability has been excellent. >we have been running for about 6 months now, with NO problems. Um, wouldn't that be only a little better than a normal RLL drive? I have been looking into getting a RLL controller for some time now, and the Perstor advertises 90% storage increase with a 2:1 interleave. If you were to get something like an Adaptec or DTC 1:1 interleave board, you could get aproximately 120mb (if only a few hard errors). Then with those, you can get upwards of 650 kb/s transfer rate. Given that the ARLL board has that many problems getting up to the expected 90% storage increase, I would (am going to) consider getting the RLL drive because there won't be many errors due to the board, and the high transfer rate. just some thoughts, lee ** 'must be Oregon, look there's another person with rust on 'em.' gates@romana.cs.orst.edu 'anybody got a job for an aspiring cs undergrad?' :-)
wek@point ([Bill Kuykendall]) (05/19/89)
2 of the guys in my office have Perstores with ST4096's on their home machines. They do work, but they both report occasional grinding noises similar to a normal configuration that is about to report a "Sector not found writing Drive C:" error. Apparently the Perstor does a read-after-write and corrects weak writes by rewriting the sector until it's satisfied. Neither of them has ever had a problem reading the drives. Still -- it's a little scary. I opted for a WD 1006V-SR2 RLL controller for my 2 ST-4096s. This formats the drives to around 118 MB. I did this partly because of their experiences with Perstor and partly because I'm running unix and I've never heard of anyone running Perstors with unix.