Re: Semi-Hot-Swap of IDE discs (OT)
On Tuesday 18 June 2002 18:41, Mark Roach wrote: On Tue, 2002-06-18 at 10:32, Nicos Gollan wrote: But if you seriously want to do backups, you should have a look at tape drives. Harddisks, especially IDE disks are in no way a safe medium. Uh-oh don't start that one up again :) OK, I'll try. That thread was vil. -- Embedded Linux -- True multitasking! TWO TOASTS AT THE SAME TIME! -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Semi-Hot-Swap of IDE discs (OT)
On Tue, 2002-06-18 at 10:32, Nicos Gollan wrote: But if you seriously want to do backups, you should have a look at tape drives. Harddisks, especially IDE disks are in no way a safe medium. Don't tapes get torn, munched and demagnetized? Why not do backups on CD-R/RW? Oleg -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Semi-Hot-Swap of IDE discs (OT)
On Wed, 2002-06-19 at 03:37, Oleg wrote: On Tue, 2002-06-18 at 10:32, Nicos Gollan wrote: But if you seriously want to do backups, you should have a look at tape drives. Harddisks, especially IDE disks are in no way a safe medium. Don't tapes get torn, munched and demagnetized? It's been years since I've seen that, but _maybe_ (or maybe not) that's because I shell out USD3,000 for a DLT drive and USD60 for DLT tapes... I'm sure AIT has the same quality. Why not do backups on CD-R/RW? Hmmm. Let's see: Max uncompressed storage on CD: 700MB Max Uncompressed storage on tape: 110,000MB (SuperDLT) -- +-+ | Ron Johnson, Jr.Home: [EMAIL PROTECTED] | | Jefferson, LA USA http://ronandheather.dhs.org:81 | | | | Object-oriented programming is an exceptionally bad idea | | which could only have originated in California. | | --Edsger Dijkstra | +-+ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Semi-Hot-Swap of IDE discs (OT) - dvd
hi ya Don't tapes get torn, munched and demagnetized? be more careful in handling and storage ?? It's been years since I've seen that, but _maybe_ (or maybe not) that's because I shell out USD3,000 for a DLT drive and USD60 for DLT tapes... I'm sure AIT has the same quality. and yes... a good drive helps... Why not do backups on CD-R/RW? Hmmm. Let's see: Max uncompressed storage on CD: 700MB Max Uncompressed storage on tape: 110,000MB (SuperDLT) dvd's are good up to about 4GB abnd some newer ones just announced are good for 100GB ... probably will be cheaper to get bunch of 100GB ide disks for $100 each than those 100GB dvd drives.. -- opps, took out too much of the who said what part... oh well.. c ya alvin -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
RE: Semi-Hot-Swap of IDE discs (OT) - dvd
-Original Message- From: Alvin Oga [mailto:[EMAIL PROTECTED] Sent: 19 June 2002 12:55 To: Ron Johnson Cc: Debian-User Subject: Re: Semi-Hot-Swap of IDE discs (OT) - dvd hi ya Don't tapes get torn, munched and demagnetized? be more careful in handling and storage ?? It's been years since I've seen that, but _maybe_ (or maybe not) that's because I shell out USD3,000 for a DLT drive and USD60 for DLT tapes... I'm sure AIT has the same quality. and yes... a good drive helps... Why not do backups on CD-R/RW? Hmmm. Let's see: Max uncompressed storage on CD: 700MB Max Uncompressed storage on tape: 110,000MB (SuperDLT) I've just taken delivery of a twin-drive 16-bay AIT3 library. Total capacity - 4160 Gigabytes. The 260GB tapes are £90 each. Now /this/ is a backup solution. Cost per megabyte (CDRW): Assume a cost of £2.50 for a single blank CDRW of quality. Assume 800MB of data written, given a reasonable compression ratio. So each megabyte of data costs 0.31 pence (that's £3.20 per gigabyte) Cost per megabyte (DLT): Assume a cost of £50.00 for a single blank DLT4 cartridge of quality. Assume 60GB of data written (DLT8000, 40/80GB), given a reasonable but not perfect compression ratio. Each megabyte of data costs 0.081 pence (That's 81p a gigabyte). dvd's are good up to about 4GB abnd some newer ones just announced are good for 100GB ... probably will be cheaper to get bunch of 100GB ide disks for $100 each than those 100GB dvd drives.. CD/DVD is NOT COST-EFFECTIVE as a backup strategy. Never mind the unreliability, the short lifespan of the media and the low speed. -- opps, took out too much of the who said what part... oh well.. Please be more careful with attributions in future. c ya alvin Regards, Peter. This message, including attachments, is intended only for the use by the person(s) to whom it is addressed. It may contain information which is privileged and confidential. Copying or use by anybody else is not authorised. If you are not the intended recipient, please contact the sender as soon as possible. The views expressed in this communication may not necessarily be the views held by Serco Integrated Transport. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
