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Related: Culture Forums, Support ForumsWhat does 1PB of storage look like?
Thought this was pretty interesting:
http://www.tomshardware.com/picturestory/582-petarack-petabyte-sas.html
http://media.bestofmicro.com/petarack-petabyte-storage-hdd,4-U-321582-22.jpg
Response to Initech (Original post)
Tesha This message was self-deleted by its author.
pokerfan
(27,677 posts)(1 petabyte) / (5 megabytes) = 214,748,365
In September 1956 IBM launched the 305 RAMAC, the first SUPER computer with a hard disk drive (HDD). The HDD weighed over a ton and stored 5 MB of data.
Now go hug your thumb drive.
hobbit709
(41,694 posts)3waygeek
(2,034 posts)TIP: if you reformat one of these cards to use the FAT32 filesystem, it will work in older microSDHC devices.
pokerfan
(27,677 posts)BiggJawn
(23,051 posts)And it was EXPENSIVE!
quakerboy
(13,920 posts)33,000 of those(give or take) and you have your pb.
I believe that is significantly smaller than your average desktop(not counting the hardware to read them). Someone else can check my math if so inclined. According to wikipedia a MicroSD card is 11 mm by 15 mm by 1 mm.
At a cost of only 1 million, not including hardware to read the cards.
Petarack bah. I want to be able to fit it in my dash box, so I have a mobile petabyte.
On edit: the 64 gb card someone posted, if I have my mental math right, takes the total size of a petabyte done that way down to laptop, maybe even netbook size. And at only 154 each, the cost drops to a mere 2.5 million.
Initech
(100,080 posts)Or you can get the deluxe model for $55.
quakerboy
(13,920 posts)Ebay. I bid on a ton at a penny each, free shipping. Didn't get any of the first 20 or so, so I upped my bid and one one for a quarter. Then another 12 came through at a penny each. Now I have a plethora of little tiny card readers.
However, for the proposed multi-use situation, I suspect you would need some sort of specialized construction, seeing as I have as yet to meet the computer with 16,500 USB ports.
Initech
(100,080 posts)pokerfan
(27,677 posts)Daisy chain!
HopeHoops
(47,675 posts)They chain just fine and I have yet to have problems with going a wee bit over the maximum cable length.
pokerfan
(27,677 posts)Last edited Sun Jan 29, 2012, 03:59 PM - Edit history (1)
The maximum number of USB devices (including hubs) is limited to 127 (27-1).
HopeHoops
(47,675 posts)If you use a LOT of really short cables you could theoretically hit the limit, but I really don't want to know what the performance would be like.
pokerfan
(27,677 posts)pokerfan
(27,677 posts)pokerfan
(27,677 posts)Try this again...
The USB Multiheaded Monster...
The other limitation of using USB devices is the interconnect length; cables are limited to a maximum length of five meters. Effective cable length can be extended by using an active device, such as a powered hub or powered extension cable, though even an active extension cable counts as a device. The total depth is limited to seven tiers, counting the root and the bottom device. This means there is a maximum of six 5m interconnects for a total length of 30m. Although 30m is sufficient to reach each corner of our server room, the reach can be increased another 15m by using shielded RS-232 cable to connect the USB-serial adapter to the server console port. Other ways of extending the RS-232 signal are available; for example, use a pair of RS-422 adapters with an effective range of about 1.3km.
http://www.linuxjournal.com/article/6518
pokerfan
(27,677 posts)It won't let me reply to #20.
HopeHoops
(47,675 posts)pokerfan
(27,677 posts)it kept showing it as replying to myself, which will make one go blind. So I'm told.
Enrique
(27,461 posts)2ndAmForComputers
(3,527 posts)But if coded with 128 Kbps, could probably hold "Hound Dog" too.
http://en.wikipedia.org/wiki/List_of_number-one_singles_of_1956_%28U.S.%29
Turbineguy
(37,341 posts)to 16 Kb. It was $400.
undeterred
(34,658 posts)tjwash
(8,219 posts)Iterate
(3,020 posts)My memory is probably wrong, as IBM says that unit had 30mb. Obviously, that was before black and white photography had been mastered. It fit into a unit that looked like this:
It was soon replaced by the 3330 drive unit, with a whopping 800mb online. Individual drives were swapped out depending upon the needs of the job being run:
This guy would show up at 10pm on Sunday nights with an 8"/1k floppy and a bad attitude to do "PM". It was magic. No one ever interrupted him. He was a grumpy high priest with two accolades always in tow. He used car oil in his hair.
My role was to feed tapes and overuse 1,1,1-trichloroethane to clean them. Sometimes my shift was at the terminal, which included a small monitor and had commands echoed to a line printer. I usually didn't play the character-based blackjack on the monitor because it slowed the system too much. Those were long nights.
Of course none of it was really mine. It was leased from IBM for somewhere around $20k/month for the drive units alone. I left after a couple of years, as there was obviously no future in it. I went hiking for two months instead.