Just like to add: in my current situation, *I* might be interested in a product like this. But if I was running a shop, I'd be leery. I still might take a look, depending on the size of the shop, the budget, etc... | | -----Original Message----- | | From: email@example.com | | [mailto:firstname.lastname@example.org]On Behalf Of email@example.com | | Sent: Wednesday, December 05, 2001 8:45 AM | | To: firstname.lastname@example.org | | Subject: Re: Writing multiple CD volumes for the AS/400? | | | | | | | | Savlib's to save files with DTACPR(*Yes) is significantly smaller than | | without. | | | | Well, I see a recent post about how reliable CD's are. However | I seem to | | recall a post not too long ago disputing that fact. | | | | As far as data on CD's being standard. Let's see we have standard CD's, | | mini CD's, DVD,... | | | | We would be nervous. For one thing, we like the support of | IBM. We keep | | current on OS's and cum's in ways we can't even discuss. Risking our | | backup while waiting for a fix for a third party while we wait for the | | finger pointing to die down ain't our bag - been there, done that - | | replaced many disk drives. | | | | Having a PC control our backup - no way. | | | | Wondering how long a company may be in business. Wondering how | | long it may | | take to get a backup drive in a disaster situation. Not really | hungry to | | try these. | | | | Rob Berendt | | | | ================== | | "They that can give up essential liberty to obtain a little temporary | | safety deserve neither liberty nor safety." | | Benjamin Franklin | | | | | | | | Brad Jensen | | <email@example.com> To: | | firstname.lastname@example.org | | Sent by: cc: | | midrange-l-admin@mi Fax to: | | drange.com Subject: | | Writing multiple CD volumes for the AS/400? | | | | | | 12/04/2001 05:54 PM | | Please respond to | | midrange-l | | | | | | | | | | | | | | I have a neat little product, Niagra CD Recorder, that plugs | | into an AS/400 and looks like a tape dirve. You savlib to it, it | | writes it out to a CD Recorder. | | | | One problem is that I don't know how to make multiple-CD | | volumes, so if the savlib is over 650 MB, I can't do it on | | multipler CDs. What I mean is, I know how to do it, I just don't | | know what IBM expects as a signal on the CD that the volume is | | continued on the next CD. | | | | Anybody know, or know who to ask at IBM, or where to get info? | | | | I looked for a redbook that tells this, if it is out there I | | haven't found it. (No surprise.) | | | | Second is I have been doing some savlibs thru this to a PC disk, | | and ZIP compressing them. Library of program souce and object | | code compress about 60%. Librarys full of database files | | compress up to 94%! | | | | (That AS/400, not PC/INS stuff). | | | | Which means you could backup as much as 10 gigabytes of data on | | a CD (they cost about 25 cents to 50 cents.) | | | | You cannot read that CD on an AS/400 directly, but - but - there | | are c libraries to do this sort of compression. If IBM would put | | the decompression in the AS/400 side, I would use the same on my | | side to create the CDs. | | | | And the other thing I can do is stand in the middle between the | | tape connection and the CD, and transparently decompress it (and | | fix my multiple volume problem also.) | | | | (Pat pending.) | | | | Would you guys be neervous about using CDs as a backup format? | | Would you be okay with using them in my 'drive' (actually a PC | | with SCSI connection and CD/RW) rather than directly on the | | AS/400 if they are over 650 MB? | | | | This has been in use for about 4 years by the way. We never got | | excited about it because of the capacity problems. | | | | Brad Jensen | | | | ESC - We bring strange things to life | | | | | | | | | | -- | | Brad Jensen email@example.com | | President | | Electronic Storage Corporation Tulsa OK USA | | 918-664-7276 | | | | LaserVault Report Retrieval & Data Mining | | www.Laservault.com | | | | www.eufrates.com - Add distance learning to | | your site with easy course preparation | | _______________________________________________ | This is the Midrange Systems Technical Discussion (MIDRANGE-L) | mailing list | To post a message email: MIDRANGE-L@midrange.com | To subscribe, unsubscribe, or change list options, | visit: http://lists.midrange.com/cgi-bin/listinfo/midrange-l | or email: MIDRANGE-Lfirstname.lastname@example.org | Before posting, please take a moment to review the archives | at http://archive.midrange.com/midrange-l. |
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