tan@bronson.UUCP (Tan Bronson) (01/10/90)
I've got two ST-4096 disks on my Xenix system and am looking to
speed it up and was wondering how much benefit a second WD1006 controller
would give me. (I'm not sure I'm willing to risk using RLL on my ST-4096)
I'm aware of the caching controllers, but I figure these are the last
ST-506 disks I will never buy, so I'm reluctant to spend more money which
is not applicable to SCSI (or ESDI).
Also can 2.3.1 support multiple swap devices?
A new WD1006 will cost me roughly $100, so it's the cheapest solution
I can find. The next step is to buy some larger disks, but this requires
me to buy new disks, controller, and if I use SCSI a new OS!
thanks in advance.
p.s. will SCO 3.2 support two WD1006 and a SCSI board ?
--
Tan Bronson (home) tan@microvation.com (or tan@bronson.uucp)
Microvation Consultants (work) bronson@multiflow.com
Madison, CT 06443davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr) (01/12/90)
In article <8@bronson.UUCP> tan@bronson.UUCP (Tan Bronson) writes: | | I've got two ST-4096 disks on my Xenix system and am looking to | speed it up and was wondering how much benefit a second WD1006 controller | would give me. (I'm not sure I'm willing to risk using RLL on my ST-4096) I certainly can't say that you should try RLL, but I have run 4096 and 251 RLL with no problems (at least none with the WD1006VSR2 controller). | I'm aware of the caching controllers, but I figure these are the last | ST-506 disks I will never buy, so I'm reluctant to spend more money which | is not applicable to SCSI (or ESDI). The 1006 RLL has hardware track buffering. This gave me about 3:1 improvement in Xenix performance. | Also can 2.3.1 support multiple swap devices? I pass on that, I've seen some things but have never tried. | | A new WD1006 will cost me roughly $100, so it's the cheapest solution | I can find. The next step is to buy some larger disks, but this requires | me to buy new disks, controller, and if I use SCSI a new OS! A good reason to at least try an RLL version. If you don't like it you can always go back and sell the used controller. Small investment. You don't get much performance improvement from two controllers, while two disks reduces the seeks and does help. | | thanks in advance. | | p.s. will SCO 3.2 support two WD1006 and a SCSI board ? The problem with the WD is that (the ones I've used) there is no easy way to reset the addresses and interrupts. The Adaptek can reset the ports, as I recall, but the interrupt needs a little external wiring. I don't claim that even if you did this that the configuration would work, but I would expect it to, since the GT version is mostly the standard version with SCSI added. -- bill davidsen (davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen) "I'm a left-handed vegitarian, and my hobbies are judo and the number three" Babs Wilcox, _Don't Get Even, Get Odd_