Yep - me as well - have my TTY KSR in the shop and the computer as well. The Video tube RS232 version - went out - power bad . I might be able to fix it, but the TTY will always work.
Mart>> I grew up on A and B drives at 525k, so it
Dad used to use 1" tape on a data drive. The reels contained
10 miles of tape. 6 miles is data storage while 2 front and 2 back end are used to ramp up/down to speed.He used two floors of them after the two floors of disk overflowed.
Floors - in a building larger than the Great Pyramid! Big radar installation.
Three parallel processing Computers streamed processed data for storage to review.
NASA uses the radar now - as a watch guard for satellites.
Mart>
Yeah, that's a somewhat unknown fact- with this kind of RAID setup at best your MTBF is actually divided by N for N drives because it will stop until you feed it a new drive to its satisfaction (good luck if it dies when nothing similar is easily available). Even if you don't lose data, you can lose a lot of time. Being of the BFI persuasion, I just mirror the drives with a daemon that copies from A to B, no RAID, no fuss. The S.M.A.R.T. parameters are monitored automagically with another daemon that sends me an e-mail if things start looking dodgy on any of the drives. Dumb, but, hey very reliable so far.
Best regards, Spehro Pefhany
-- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
In my day, we defragged core memory by hand, with magnets.
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net
It kind of depends on what you mean by "back up".
I back up my work (religiously!)
But there's no way I'm going to back up the entire 225 thousand files on this machine - and think I can actually do a restore from that and have it work.
On Tue, 04 Dec 2012 20:02:51 -0600 "Pete C." wrote in Message id: :
It all depends on how deep your pockets are.
Or if you're on a budget.
The rubber button on the print hammer of my ASR33 turned to goo, possibly because I reinked a ribbon too heavily with stamp pad ink. I made a mold and hot-pressed replacements made from rubber windshield washer hose. I weighed out the rubber, heated the mold until a drop of solder on it melted, then squeezed it in the bench vise. jsw
24TB uncompressed, that's pretty impressive, if you can actually recover from a serious problem (like a 2T drive completely dying) in a reasonable length of time. Depends on backup strategy etc., but I bet it's not going to be really fast.
Best regards, Spehro Pefhany
-- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
Your nickname should be "The Vulcanizer". ;-) Or "Mouldy Madman"
When I worked at a W.U. Telegraph Co. repair center as a TTY repairman I always had to replace rubber print hammer. It either was gummy or too hard. If it was gummy it smeared over the type wheel and if it was too hard it would damage the letters it hit.
I backup and restore full machines regularly and they always work perfectly. Granted these are not Windoze machines, but the folks in that area also do full backups and restores without issues as far as I know.
message
that
survive
movies.
We've got libraries that hold hundreds of tapes, not just 5, be even with that the primary backups are going to disk based with data de-dup. It's faster and takes less floorspace in the DCs.
The first 4 hard drives I ever bought were over 10x the size of the last. Now we have to wait 5 years for a 50% increase.
-- Reply in group, but if emailing add one more zero, and remove the last word.
What kind of POS controller stops servicing the host(s) if one member of a mirror set dies??? I've been using "real" controllers for many years and they never stop servicing the host(s) for anything short of loosing both members of a mirror. Not even a controller failure stops them since the controllers themselves are redundant and the remaining controller will pickup the load. A failed disk will be automatically replaced from the spare set and the mirror will be back to full redundancy in short order. You get to select on a unit by unit basis whether priority should be given to shortest reconstruct time with some performance impact to the hosts or no performance hit, but longer reconstruct time.
Well, I have to admit that saying it as "only 4,700,000k" sounds much more impressive.
Wish we could get the media to start reporting the National Debt as "16,000 billion" rather than "16 trillion". ( Of course, "four times the Federal 2012 budget", and "nearly seven times the expected Federal
2012 tax revenue" are good, too. )Frank
--
Is it not fair to ask the technologist, not only to provide arte-
facts which work, but also to provide beauty, even in the common
street, and, above all, to provide _fun_? Otherwise technology will
die of boredom. Let us have lots of ornament. Let there be figure-
heads on ships, gilded rosettes on the spandrels of bridges, statues
on buildings, crinolines on women, and, everywhere, lots and lots of
flags. Since we have created a whole menagerie of artefacts, motor
cars, refrigerators, wireless sets, and the Lord knows what, let us
sit down and think what fun we can have in devising new kinds of
decorations for them.
-- J. E. Gordon / "Structures, or Why things don't fall down"
In Europe they use the term "thousand million" rather than billion.
(for 1x10^9)
It would take days!
A few hours at most using "real" tape drives that sustain 10+ MB/S throughput.
The best current practice is to use an SSD for your operating system and programs, and use a conventional drive for your personal data (what you can separate from the primary drive).
I buy namebrand hardware and look at reviews for the specific product I'm interested in. Newegg and Amazon are my two currently favorite online shops. Reviews are not always accurate, even the consensus can be wrong, but you can get an idea of the pluses and minuses of a particular product by looking at both positive and negative user reviews. I value negative reviews, by determining whether the alleged problems are something I can live with. Otherwise, you get what you pay for.
yeah right.
3 hours per T?If that's really possible, it's gonna cost wads...
I always get a bit paranoid when someone refers to "real". :)
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