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Everything posted by reader50

  1. From the picture, the 6 TB appears to have standard middle screw holes. Couldn't see the bottom, but the side holes look normal.
  2. reader50

    Samsung 2TB SSD: when?

    I missed this earlier. Last time I checked, I couldn't find a decay rate for unpowered SSDs. And to my knowledge, they aren't on a refresh strobe like DRAM. Is this for real - has a data decay lifetime been established for SSDs on the shelf?
  3. reader50

    It's pretty quiet here these days.

    Besides upgrades, many past conversations were help requests. Those have tapered off significantly. Apparently due to more reliable hardware, and smarter software. And to users actually backing up. I'm seeing the same thing at a tech forum I moderate. Traffic way down. People at work need less tech help, and students in school have more ways to waste time today. That leaves ... house wives / house husbands? Maybe us forum people should add entertainment amenities.
  4. Really? 4 TB in a single platter? Doesn't sound right.
  5. Shocking if true on the price. Even limiting things to 7200 RPM drives and discarding the cheapest choice, newegg currently offers 160 GB HDs for $20, and 250 GB for $40. newegg's SSDs include 120 GB for $53, or $85 for 240 GB. SanDisk will have to cut the SSD prices in half. The comparison gets much worse if they go bigger than 256 GB.
  6. "HGST is also combing (SMR) with HelioSeal ..." Requires an unusually big comb. Perhaps it meant to say "combining"? note: "combing" appears in the article too.
  7. reader50

    Need advice on future storage

    When will we get around to discussing the future storage? Title aside, all I'm hearing is present-day storage solutions. I'd like to hear about the upcoming isolinear chips in the petabyte ranges.
  8. reader50

    Hard Drive Problem

    You probably caused a mid-write seek error, and heard the heads resetting their position. The drive should have just rewritten that block from cache and moved on. In which case your drive is fine. It's unlikely your hit would cause enough Gs to force actual damage. You more normally see high Gs when you drop a drive against a hard surface. Or tap it with something solid, like a hammer. Something more solid than your hand. If you want to be super careful, you could delete the 400 GB and recopy it across. Against the chance that the write head wandered into other tracks and corrupted them before the drive noticed.
  9. Switch drives between controller ports. See if the trouble follows the drives, or the ports they were plugged into. Also pay attention to the cables - a bad cable can muck things up too. So you may have to try a few different combinations to narrow it down.
  10. reader50

    Weird Seagate 1TB problem...

    Maybe your data is less valuable to you than mine is. I'd replace the drive yesterday and get all the data off. Then drop-kick it towards the nearest dumpster. It isn't worth the time to fiddle with an unreliable drive.
  11. B&H has a Toshiba 5TB external for $179 with free ship. It's not a deal, price has been the same for a month. But it's cheaper than the 5TB still listed above. And it's 7200 RPM.
  12. If you use a drive cage with port multiplier, it can be worth a SATA III controller. Individual hard drives can exceed 200 MB/s today at the beginning of the drive. With as little as two drives in your cage, you can saturate a SATA II link. Say if you're copying a file between the drives. If you have 4-5 drives RAIDed in your port multiplier enclosure, you could see a big boost from a SATA III controller. However, your PM enclosure must be SATA III also.
  13. reader50

    New internal drives for data storage

    Brian, what would qualify as a large quantity? Their earlier report showed 12,956 Hitachi drives in service. I'm unaware of any larger group having their stats reported. I'd think anything over 1,000 would be a useful sample size, provided they were bought gradually.
  14. reader50

    New internal drives for data storage

    The most recent Backblaze stats suggest HGST (formerly Hitachi) as the most reliable by a wide margin. Bear in mind Backblaze uses consumer drives for 24/7 operation, and does not include stats for Samsung or Toshiba. They haven't bought enough samples to include those - yet.
  15. reader50

    Samsung 2TB SSD: when?

    I know it's not what you asked for, but there are 2 TB laptop HDs on the market now in 9.5mm. They'll fit in standard laptop drive bays. Newegg has several for $120 or higher. All apparently 5400 RPM. They're not SSDs, but you can buy them today. While waiting for the 2+TB SSDs.
  16. How full is your SSD? Are you above 80%?
  17. I think from your description the drive is still in the external enclosure? If so, you'll most likely need to get it out of the enclosure so you can access the bare drive. If it's the enclosure that failed, the drive may not even need repairs.
  18. I was thinking the same thing about altitude and space. It will work, though you'll need a heat sink connection if used in a vacuum. The heat sink will have to control temp on the cold *and* hot swings, to take the place of the missing atmo.
  19. reader50

    HDD lifespan: age vs runtime hours?

    The two drives that failed that way departed quietly. I didn't log the run hours before trashing. I have a 300 GB Maxtor that is about as old as the last such failure (200GB Maxtor) when it quit. Similar use as a boot drive while young, and for file backups since. I'll install it when I next work on an old unit, and will post the data here. However, it hasn't exhibited high sector remapping yet.
  20. reader50

    Opinion on Toshiba 3.5" HDDs?

    My three are in a RAID 0, but it's an OS X software raid. I suspect it's implemented with forgiving error recovery, same as solo desktop drive usage. No issues so far, for whatever that is worth.
  21. reader50

    HDD lifespan: age vs runtime hours?

    I think it is mostly run hours. Eventually magnetic fade (bit rot) will cap a drive lifespan. I upgrade slowly, and put old drives back in service to delay upgrades when HD prices are high. Most recently, after the Thailand floods. I've lost a couple boot drives that were in daily use. Among my older drives, they start remapping a lot of sectors after about 10 years. Bit rot among the formatting bits, which ATA drives cannot re-write.
  22. It's an indirect link, but does go to the latest Backblaze post. Link is the 2nd one in the news posting. continuum, what limitations were you thinking of? I can think of two: toshiba & samsung not represented due to small sample size, and two models excluded due to RAID incompatibility. Were there other limitations?
  23. reader50

    Opinion on Toshiba 3.5" HDDs?

    I'm giving Toshibas a try, but got mine too recently for valid stats. No breakdowns so far, sample size of 3 and duration of a couple weeks. My reasons for trying Toshiba are slightly different from yours. I don't want to reward the Duopoly for gobbling up Maxtor/Samsung/HGST then failing to compete with each other. Prices have fallen very slowly since they consolidated, except those segments Toshiba has competed in. And I'm annoyed with WD marketing. Witholding basic drive stats (intellipower!) when they are not complimentary. And Seagate reliability, plus how they handled the 7200.11 disaster. Where Seagate initially deleted customer discussions off their support boards, only later 'fessing up about the failure reasons.
  24. I bought one for harvesting. The product box says it's made in China. The drive inside is a Toshiba MD04ACA500 made in the Philippines. Bare drive is a standard SATA, and the system reports it as 7200 RPM. Blackmagic disk test benches it at 209-213 MB/s at beginning of drive. Read and write both. All the case electronics are on a miniboard that mounts to the SATA connector. Then there's a metal shield/heat spreader that covers the drive underside, connections, and enclosure board. Finally, 4 rubber bushings between drive assembly and plastic outer case. No fan. I tried it before disassembly, made sure it worked before breaking the warranty. Seemed average for drive noise from a ventilated case. The case snaps together, no screws. If you know exactly where each catch is, you can probably open it invisibly. Otherwise, expect to rough up the catches. Edit: I rebenched to confirm the figures. Original figures were from memory, when I opened it a week ago. A fresh test came up lower - turned out I had to use the storagereview trick to create small (10GB) partitions at beginning and end of drive to force writing at the proper locations. Start of drive: 190-210 MB/s, read & write, tended to average ~200 MB/s. Confirmed with file copies to/from a RAID 0 array. End of drive: 101-113 MB/s, read & write, tended to settle ~108 MB/s. All speed tests were done via internal 3G port in a Mac Pro. I don't have a USB 3 port to test in the enclosure.
  25. I assume this is TLC? The story implies it by comparing to "higher-grade MLC to SLC" without actually saying so.