Re: New Apple SuperDrive Support
http://cryptome.org/jg-wwwcp.htm thanks, Steve, for the turn-on to this piece ... this is a dangerous precedent I, for one, don't want to encourage ... it's another example of how the huge transnationals press forward in their determination to whittle away at and attempt to restrict and direct consumer choice. the best way to NOT support this kind of manipulation is to get the article above tightened down to a SIMPLE and short piece (ie, here's the policy, here's what you will and won't be able to do because of it), then get it 'round the Internet, and encourage folks to NOT buy these players until they include built-in options for copying. their pay and pay and pay-per-view (or per-listen) coercion is UNacceptable, and I believe if folks were made aware of these up-coming products they'd decline to buy them, too. I can't imagine anyone willingly buying in to this kind of self-censorship once they're aware of the implications. - ilyes - - --- Steve Axthelm [EMAIL PROTECTED] wrote: I don't know how this affects data writing/reading, but you might want to read this: http://cryptome.org/jg-wwwcp.htm "...What is wrong is when companies who make copy-protecting products don't disclose the restrictions to the consumers. Like Apple's recent happy-happy web pages on their new DVD-writing drive, announced this month (http://www.apple.com/idvd/)..." Will Dantz support it? Eric announced that Dantz would be supporting the drive and that "It's a VERY high priority" -Steve - - --- At 11:53 -0500 1/25/01, Parthenon West wrote: Apple is now installing the Pioneer DVR-A03 DVD recorder in it's machines. I've read a lot of articles about the drive, but NO ONE mentions burning computer data on it, just music and movies! -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: New Apple SuperDrive Support
http://cryptome.org/jg-wwwcp.htm thanks, Steve, for the turn-on to this piece ... this is a dangerous precedent I, for one, don't want to encourage ... it's another example of how the huge transnationals press forward in their determination to whittle away at and attempt to restrict and direct consumer choice. For anyone interested, I'd point them to http://www.wired.com/news/technology/0,1282,41142,00.html. I'm not sure that anyone will be able to prevent home DVD copying; I certainly can't think of a precedent. Rich -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: Purchasing a new system
DLT has not addressed that issue. Since linear pulls the tape across the heads at a faster rate (150 inches per second vs helical scan's .5"/second), it requires streaming -- otherwise you end up "shoe-shining". This reposition is very intense on the heads/tape of a linear drive. This applies to more than just DLT. Anything linear can suffer from this. 4mm, AIT and M2 are not plagued with this problem. Not really. AIT and DAT and I assume M2 spin the heads and slow down the tape but the relative speeds are in the same neighborhood. (I assume it's easier to spin the heads faster than move the tape faster which is why DLT appears to be falling behind in the race.) Anyway, you still need to keep the data flowing at the speed of the drive or it will stop streaming and get into tape stuttering or rewinds to reposition. This also causes a large loss in tape capacity as there's a lot of recording overhead in starting or stopping a stream. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
RE: Purchasing a new system
Definitely. Every technology needs streaming data for optimized performance. One cool thing about M2, it has a huge buffer (32MB). AIT-2 has 8MB. M2 uses this larger buffer to help adjust for varying host speeds. M2 can vary its tape speed to match the host. With so much memory, it can cache more files and flush the buffer accordingly. M2 is more expensive than the AIT series, but less expensive than a DLT 8000. I personally don't know why anyone would buy a DLT 8000 knowing M2 is 2x faster, 50% larger per tape and costs less. Only guys who need backward read compatibility have been buying DLT from us these days. Now that they know generation I of the SDLT (SuperDLT) will not be backward compatible with previous DLT formats, many of them have been moving to AIT and M2 (which promise larger capacities with future generations and complete backward compatibility). This explains why you can find so many DLT drives on eBay. Steve Cybernetics www.cybernetics.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of David Ross Sent: Friday, January 26, 2001 11:22 AM To: retro-talk Subject: Re: Purchasing a new system DLT has not addressed that issue. Since linear pulls the tape across the heads at a faster rate (150 inches per second vs helical scan's .5"/second), it requires streaming -- otherwise you end up "shoe-shining". This reposition is very intense on the heads/tape of a linear drive. This applies to more than just DLT. Anything linear can suffer from this. 4mm, AIT and M2 are not plagued with this problem. Not really. AIT and DAT and I assume M2 spin the heads and slow down the tape but the relative speeds are in the same neighborhood. (I assume it's easier to spin the heads faster than move the tape faster which is why DLT appears to be falling behind in the race.) Anyway, you still need to keep the data flowing at the speed of the drive or it will stop streaming and get into tape stuttering or rewinds to reposition. This also causes a large loss in tape capacity as there's a lot of recording overhead in starting or stopping a stream. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: Purchasing a new system (tape drive performance)
Not really. AIT and DAT and I assume M2 spin the heads and slow down the tape but the relative speeds are in the same neighborhood. (I assume it's easier to spin the heads faster than move the tape faster which is why DLT appears to be falling behind in the race.) Anyway, you still need to keep the data flowing at the speed of the drive or it will stop streaming and get into tape stuttering or rewinds to reposition. This also causes a large loss in tape capacity as there's a lot of recording overhead in starting or stopping a stream. The loss in capacity comes from the drive's attempt to continue tape motion while waiting for new data to arrive in the write buffer. No data is recorded while the tape continues to move forward. This "long gap" strategy has been in use since the advent of 6250 bpi 1/2" reel-to-reel drives. The latest generation of cartridge drives, whether or helical scan all implement some form of intelligence, in the drive, to slow the tape transport or insert gaps in the data and thus adapt to the rate at which data is arriving to the drive. If network congestion or system loading eventually exceed some limit, the drive must fully stop the tape motion and rewind slightly in order to reposition before restarting recording when the data level in the buffer reaches a high water mark. Repositioning of DLT drives is a simpler process than for helical scan drives due the latter's capstain effect (binding friction due to head rotation and tape motion interference). Sailor's used to the effect of a "cat head" will find this concept to be intuitive. A linear drive (DLT, LTO, 3590E etc) does not need to reduce tape tension during the reverse motion. A helical scan drive (Exabyte (all), DDS-DAT, AIT and high end drives from Sony and Ampex) must be much more careful in its handling of the tape to avoid stretching of the media due to slapping or binding of the tape loops during the change of motion direction. The wear-and-tear effect of tape repositioning (aka "shoe shining") is the predominant factor in the differences in drive reliability and performance observed by different users. Those who have had bad exeriences with one drive type or another can most often trace an explanation back to system and network loading or limited bandwidth, memory or other resources...not to the drives. Doug.Wyman Houston TX -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: New Apple SuperDrive / CSS
http://www.lemuria.org/DeCSS/paranoia.html I don't want to roam TOO far afield with this DVD-copying thread, BUT ... I believe this is a most important matter that in one way or another touches, or will touch, EACH of us who uses a computer or buys audio/video toys: I searched google on DeCSS (code to UNscramble CSS or 'content scrambling system') and came up with many pages of info on it, including the URL I pasted above. It describes WHAT DVD-CSS folks are doing, and WHY. It should be no surprise that the bottom line is the USUAL bottom line: more money for themselves and their stockholders; and controlled -- and fewer -- choices for consumers ... (ah, the glories of megamergers!) I myself am involved in service-oriented work, and believe STRONGLY that if one resonates with another's creative endeavor, one SUPPORTS that creativity by PAYING MONEY for it. But when someone buys my book, I do NOT believe that I should have a right to charge them EVERY TIME they re-read it, or share it with a friend! Buy once, own forever ... ! I think DVD/CSS would-be-controllers might well be pinching off their own noses to spite their faces on this. Geeks seem to believe that the new G4/OS X combo (for one) shows much promise a/f/a getting around CSS restrictions goes -- after all, the G4s were MADE to create/edit audio/video projects ... The forced (unskippable) ads at the beginning of DVDs might be a good place from wch public resistance to this outrageous and intrusive arm-twisting might start: boycott those who advertise on DVDs, and let the advertiser know why you've decided to be part of a national boycot against them. They and the player-designers will get the message, but first you gotta talk their language ($$$) ... - ilyes -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
It's newby time! (LTO mechanisms / RAID swap modificationflaggin g)
Apologies if the following questions have been covered in depth in the recent past and everyone's bored sick of them, but... Have 2x G4s (OS9.0.4, ASIP 6.3.1) attached to a. old Micronet DD7000 (7x 18gb at RAID5) and b. United Digital SuperStar fibrechannel host (4x 50gb at RAID5). Total capacity across the two servers is nominally 258gb, which is NOT ENOUGH. Have today taken receipt of another SuperStar with 8x 72gb, plus 4x additional drives for the original SuperStar. Once the messy stuff is done I end up with a DD7000 as a doorstop, 1x 300gb Superstar + hot spare, and 1x 432gb Superstar + hot spare. Even with our archiving 'discipline' this should be sufficient for a couple of years. The problems are: BACK-UP SOLUTIONS Backup is to a single drive Micronet DLT 20/40 on a dedicated 8600/250. I'm happy with my rotation (three sets on the go, incremental backup, rotation every three months) but have one reservation: the rotation itself. We currently utilise c.200gb of space, so on the next rotation there will be 600gb of data to be written at c.35mbpm, or THREE HUNDRED HOURS of continual backup (during which time our backup is, obviously, somewhat 'patchy'). One improvement would be another dedicated Mac and DLT and assign one to each server, but to my highly untrained eye the answer is the LTO/Ultrium format. Dantz confirmed to me a couple of months ago that Retro 4.3 / ADK 1.8 supports the HP Ultrium 230 and IBM 3580 LTO Ultrium mechanisms, but neither HP's nor IBM's websites says ANYTHING about MacOS compatibility. Dantz also confirmed the HP SureStore Autoloader 1/9 to be supported; I didn't ask about the IBM 3581 autoloader. I assume that 'supported' means 'connects, is recognised, 'works', and if applicable autochanges'. If so, that's fine: I don't want to be paged at 5am if my cleaning tape needs changing. Does anyone have any real-life experience of running Mac Retrospect 4.3 with an LTO/Ultrium mechanism? Any advice gladly accepted. MODIFICATION FLAGGING Somewhat briefer: I want to get my new RAID in place, but don't want to start a new backup to the DLT. Retro logs in as an admin and backs up partitions rather than sharepoints (saves on sessions). If I give the new RAID identical partition names and transfer all data 'to the same place', bearing in mind the ASIP Mac will be absolutely unchanged, will I be able to continue my incremental backup as normal or will the data be marked as modified? Does anyone have advise on how to minimise the risk of modification? Many thanks in advance, Mark -- Mark James ~ information technologist mailto:[EMAIL PROTECTED] ehsrealtime ~ 7 Soho Square ~ London W1V 6EH t 020 7878 2600 ~ f 020 7544 4700 ~ www.ehsrealtime.com ___ The information in this email is confidential and is intended solely for the addressee(s) and access to this email by anyone else is unauthorised. If you are not the intended recipient then any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
RE: Purchasing a new system
Pardon my ignorance but I visited your site and did not see any mention of this M2 format? Where can I get details on it? David -Original Message- From: Stephen Jones [mailto:[EMAIL PROTECTED]] Sent: Friday, January 26, 2001 11:50 AM To: 'retro-talk' Subject:RE: Purchasing a new system Definitely. Every technology needs streaming data for optimized performance. One cool thing about M2, it has a huge buffer (32MB). AIT-2 has 8MB. M2 uses this larger buffer to help adjust for varying host speeds. M2 can vary its tape speed to match the host. With so much memory, it can cache more files and flush the buffer accordingly. M2 is more expensive than the AIT series, but less expensive than a DLT 8000. I personally don't know why anyone would buy a DLT 8000 knowing M2 is 2x faster, 50% larger per tape and costs less. Only guys who need backward read compatibility have been buying DLT from us these days. Now that they know generation I of the SDLT (SuperDLT) will not be backward compatible with previous DLT formats, many of them have been moving to AIT and M2 (which promise larger capacities with future generations and complete backward compatibility). This explains why you can find so many DLT drives on eBay. Steve Cybernetics www.cybernetics.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of David Ross Sent: Friday, January 26, 2001 11:22 AM To: retro-talk Subject: Re: Purchasing a new system DLT has not addressed that issue. Since linear pulls the tape across the heads at a faster rate (150 inches per second vs helical scan's .5"/second), it requires streaming -- otherwise you end up "shoe-shining". This reposition is very intense on the heads/tape of a linear drive. This applies to more than just DLT. Anything linear can suffer from this. 4mm, AIT and M2 are not plagued with this problem. Not really. AIT and DAT and I assume M2 spin the heads and slow down the tape but the relative speeds are in the same neighborhood. (I assume it's easier to spin the heads faster than move the tape faster which is why DLT appears to be falling behind in the race.) Anyway, you still need to keep the data flowing at the speed of the drive or it will stop streaming and get into tape stuttering or rewinds to reposition. This also causes a large loss in tape capacity as there's a lot of recording overhead in starting or stopping a stream. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
RE: Retro Server 5 on NT 4
Please forgive my ignorance, but I have to ask the following question: Your hard drive fails. You want to pop in a new drive and restore the system to the original condition. What do you do? ___ Scott Dunn Systems Engineer South Shore Building Services www.southshoreinc.com [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Irena Solomon Sent: Thursday, January 25, 2001 9:17 AM To: retro-talk Subject: Re: Retro Server 5 on NT 4 If you already have an active system on that machine, you can't do a *complete* restore, as Retrospect won't write over the active system file. You could restore your entire Program Files folder though, which would restore the Retrospect program and preferences. You'd then not only have to rebuild catalogs but recreate all your scripts and log in any clients as well. Best Regards, Irena Solomon Dantz Tech Support I know that this sounds like the long way, but isn't it possible to start from ground zero? I mean that if I start with a clean install of NT 4.0, then install Retrospect, then have Retrospect rebuild a catalog of the tape, from there I could do a complete restore of the Server, right? -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
RE: Retro Server 5 on NT 4
What operating system? On the Mac, you can boot from the Retrospect CD, I believe. I usually take that opportunity to do a clean install though. On the Mac, I'll do a clean install of the current OS and then restore all the files into a sub-folder and then move them out as needed. All of the Windows machines that I manage have a ZIP drive and can boot from it, so I've created a Boot ZIP disk for each machine that also has the Retrospect Client software installed. Please forgive my ignorance, but I have to ask the following question: Your hard drive fails. You want to pop in a new drive and restore the system to the original condition. What do you do? -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
Re: Retro Server 5 on NT 4
Hi Scott, on 27/1/01 10:35 AM, Scott Dunn at [EMAIL PROTECTED] wrote: Please forgive my ignorance, but I have to ask the following question: Your hard drive fails. You want to pop in a new drive and restore the system to the original condition. What do you do? 1. On the new disk Install Windows NT into a temporary directory (e.g. wintemp). 2. Since this thread was about the Backup Server, install Retrospect into a temporary directory. 3. Rebuild the catalog of the most recent backup of the Backup Server. 4. Restore from the Backup Server backup (i.e. from local backup device). 5. Reboot. 6. Delete the temporary directories. The Backup Server should now be as it was at the time of the last "self" backup. On a Mac this so much easier as you can always boot from the Retrospect CD (or an external hard disk, or zip or jaz, etc, etc) and omit steps 1 and 2 above ... this is not so easy with Windows platforms as there are so many system configuration variables which make it basically impossible for Dantz to ship a bootable restore CD for Windows. However I heard somewhere that Dantz are working on a solution which will allow a bootable restore CD to be created by Retrospect for the specific system. Cheers, Malcolm -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Information Alchemy Pty Ltd ACN 089 239 305 Canberra, Australia Malcolm McLearyMobile: 0412 636 086 Managing Director Email: [EMAIL PROTECTED] This message was sent using Outlook Express 5.0 for Macintosh. -- -- To subscribe:[EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives:http://list.working-dogs.com/lists/retro-talk/ Search: http://www.mail-archive.com/retro-talk%40latchkey.com/ For urgent issues, please contact Dantz technical support directly at [EMAIL PROTECTED] or 925.253.3050.
