UMeyer@DGIHRZ01.BITNET (02/11/91)
We are still using SR9.7.1 and want to make an upgrade to SR10.x . There are some problems: - I heard that SR10.x needs a lot of disk space (>150 MB). Is that true ? Can it be used on machines with MSD-170M disks ? - The money: even for a university they want approx.4000$ for the cartridges and documentation. Has anyone succeeded in receiving a cheaper upgrade ? - Performance: What is the current version? Does it contain major bugs ? Advantages compared with SR9.7.1 ? I appreciate any help (and comments) on these questions ! Uwe Meyer
thompson@PAN.SSEC.HONEYWELL.COM (John Thompson) (02/12/91)
> We are still using SR9.7.1 and want to make an upgrade > to SR10.x . There are some problems: > - I heard that SR10.x needs a lot of disk space (>150 MB). > Is that true ? Can it be used on machines with MSD-170M disks ? Yes, it can take up a lot of space. For 10.3, the space ranges from about 75MB for a small Aegis-only load to 155MB for all 3 O/S flavors (large). There is also a Medium load, and you can select any combination of Aegis, BSD, and SysV. However, you don't need to load the full O/S on every node in the network. We have a small number of disks which have everything (the Authorized-Area nodes), and everybody else links a lot of stuff to them. It's set up to link through a /links directory on the node, so if an AA goes belly up, we can easily change all the links in a feww minutes. By linking out a lot of s/w, we cut the O/S, compilers(3), DSEE, DPAK, Dialog, and Omniback load down to about 45MB per node. So, yes, you can still use the 146MB disks (although we're trying to get rid of them). > - The money: even for a university they want approx.4000$ > for the cartridges and documentation. Has anyone succeeded > in receiving a cheaper upgrade ? Yuck! We pay maintenance, so I don't know how much they'd ask for. (Personal flame -- it seems unfair that universities sit around whining when they don't get their 95% discounts) > - Performance: What is the current version? Does it contain > major bugs ? Advantages compared with SR9.7.1 ? 10.3 is the current version. It seems pretty good, 'though we haven't thrashed it completely. Advantages Disadvantages ----------------------------- ---------------------------- MoreLikeRealUnix MoreLikeRealUnix Longer pathnames some user programs will break Case sensitivity Case sensitivity Better TCP/IP TCP/IP still gives hassles. X windows interface \ TCP/IP not a layered product |- Takes up more space Unix not a layered product / Slow nodes get slower (4MB is tiny) -- jt -- John Thompson Honeywell, SSEC Plymouth, MN 55441 thompson@pan.ssec.honeywell.com As ever, my opinions do not necessarily agree with Honeywell's or reality's. (Honeywell's do not necessarily agree with mine or reality's, either)