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#81 |
Badcaps Veteran
Join Date: Jun 2012
City & State: Melbourne
My Country: Australia
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![]() I had a 60GB Seagate last 140000 hours before it randomly died (3/4 of the way through backing up no less) - never had any errors or bad sectors, was copying flawlessly, then suddenly dead, a few clicks upon powering up then power down immediately. The 40GB Seagate in the same PC had 160000 hours and was still good the last time I checked two years ago (no point as I backed it up before the 60GB).
Still got a long way to go with this PC - it's a 320GB Hitachi Deathstar HDS721032CLA362 with just 33684 hours. |
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#82 |
Solder Sloth
Join Date: Nov 2012
City & State: CO
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![]() how many hours before people typically give hard drives a retirement party?
wonder if i should chance used 55k or 72k POH used hard drives...and how much should be paid for them... |
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#83 |
HC Overclocker
Join Date: Jul 2012
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![]() i just use them till they drop. thats the point of the hardware. all hard drives will fail eventually...
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#84 |
The Boss Stooge
Join Date: Oct 2003
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![]() I cycle out drives with critical data usually every 5 years....and to further reduce data loss risk; also run them in RAID arrays for redundancy....but you're right, nothing lasts forever....which is why I can't preach enough for people to keep backups on more than one media; stored off-site.
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#85 |
Solder Sloth
Join Date: Nov 2012
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![]() Well RAID it is, alas 5 years is ~ 44k POH. Just wondering what are acceptable as CHEAP replacements when they do fail... just had one get kicked from my array, it still works alas very flaky. Put in another flaky disk in its place, but it seems to be working better at least. All disks have a lot of hours on them now, at least 40k poh.
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#86 |
HC Overclocker
Join Date: Jul 2012
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![]() it all depends on what type of data u put on them and your risk appetite. if its critical data then even 1 bad sector is unacceptable because that has already caused loss of your valuable data. if its not too important and/or the data is already backed up on another disk, u can get away with some bad sectors. it is highly unlikely that two disks will develop bad sectors at the exact same spot! so its okay, its still possible to reconstitute all the data back again.
if u're still using flaky disks, then make sure whats on them is backed up elsewhere 1:1. then just use them till they drop. so thats squeezing every bit of $ out of the hardware u paid good money for! hehehe! ![]() |
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#87 |
Solder Sloth
Join Date: Nov 2012
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![]() Yeah the disks including the flaky disk is in a RAID5, and the array is being backed up to another disk, but it's not completely backed up "sorta" due to the size problem. I'm actually using the other flaky disk that dropped to back up the array since it came back clean in badblocks. Problem is that backups are taken every two weeks or so and there can be a gap between having two disks fail in the array and needing to go back 2 weeks. Was lucky this time, RAID kept uptime up - no downtime unlike when I killed the computer when I ran out of RAM and it swapstormed.
I just need to get another disk at some point so that if a disk gets dropped I can rebuild the RAID5 as soon as I can. It unfortunately takes like 6 hours to rebuild the array. Rebuild seemed to work fine last time when that flaky disk was dropped and swapped in that another flaky disk - but currently all disks are up and running and other than the slowdown during rebuild, it went smoothly - hot swap was successful. Next RAID scrub should be next week I believe, I have each RAID member read every once in a while to ensure parity is good. Yes, trying to milk every cent out of these disks. Data is semi-valuable (irreplaceable other than backup) but the amount of data is not huge, plus the typical replaceable stuff (few rips, etc.) |
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#88 |
The Boss Stooge
Join Date: Oct 2003
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![]() As cheap as large drives are these days, it's hard to beat simple raid1 arrays. Most reliable and easiest to recover in the event of a failure.
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#89 |
Solder Sloth
Join Date: Nov 2012
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![]() Drives need to be even cheaper, especially having to waste one whole disk to protect another - it doubles operational costs. Using one disk to protect two or three disks seems a better use of a disk resources, not to mention a properly designed RAID5 will get some of the benefits of RAID0 during reads.
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#90 |
Solder Sloth
Join Date: Nov 2012
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![]() Woah... big fail on my part.
I was trying to swap out the ailing disk by putting a new disk into an empty slot in the array so I could clone to it. Except I ... oops... opened the wrong door. I noticed I pulled the wrong door 2 seconds after I saw the disk pop out of slot that I did not expect. "OSHIT" I closed the door right away and hurried to check to see what Linux RAID did... Linux did notice the disk coughed due to it being ejected and reinserted, but Linux-md did not kick the disk! Whew! Disaster averted! Placed the preowned disk into the empty slot and started the rebuild. Hopefully in a few hours it will think everything's hunky dory again and I can eject the actual failing disk. And maybe stick in a hot spare. |
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#91 |
SNES-powered
Join Date: Oct 2013
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![]() I surprisingly have had luck with Seagate drives recently. Half of my running drives, laptop and desktop, are Seagates, and HGST.
I've had troubles with WD Blues and Toshibas mostly - WD Blues either would fail with slow access times, and Toshibas had their heads go funky. Surprisingly, WD Black (only have one that ORIGINALLY came with a HP G62-a35so - that specific one is fine, HP P/N printed on it), even with SMART failure (had a WD3200BEKT with a Dell part number on it), will keep running at their standard speed of 7200rpm.
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Main rig: Gigabyte B75M-D3H Core i5-3470 3.60GHz Gigabyte Geforce GTX650 1GB GDDR5 16GB DDR3-1600 Samsung SH-224AB DVD-RW FSP Bluestorm II 500W (recapped) 120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB Delux MG760 case |
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#92 |
Solder Sloth
Join Date: Nov 2012
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![]() Dang just realized... or maybe it's a mistake... my old WD Enterprise RE4 disk is actually 5400RPM! Weird, would explain why I'm getting only 100MB/sec from it. In any case it's still choking and getting random bad sectors everywhere, though it seems to still have plenty of spare blocks, however data is getting lost in the mean time. Wonder if it's possible to get it to a steady state where it's not puking more bad blocks, so I can squeeze more life out of it...
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#93 |
Solder Sloth
Join Date: Nov 2012
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![]() Hmm...also notice that it's losing a lot of sectors about a bit past 75% of the disk... I wonder if I should just tell the drive to behave like a 1.5TB disk or partition away the bad spot... and wonder how much longer I can use the drive with it like this...
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#94 | |
Computer Geek
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![]() Quote:
I'd boot it from the array before it eats something important in a non-recoverable way. It might be degradation of the head stack, the magnetic coating on the platters themselves, or the head preamplifier is getting weak.
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Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them. ![]() My computer doubles as a space heater. Windows 10? Only if you like forced, buggy updates and 24/7 telemetry. Samsung = Seagate = Seatrash = Trashgate Don't buy Seagate drives. Don't use Seagate drives. If you have any in service right now, make plans to replace them ASAP. SMR = Slow Magnetic Recording Avoid SMR, buy CMR drives instead. SMR is easily a 15+ year step BACKWARDS in HDD speed. Permanently Retired Systems: RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again. |
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#95 |
Solder Sloth
Join Date: Nov 2012
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![]() oh it's been gone from the array... it's whether I will continue to use it as a separate drive, trying to avoid the bad spots on the disk...
This is pretty crappy of a drive...only 44K POH, I've had others that have been better. |
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#96 |
ghettomodmaster
Join Date: Nov 2016
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![]() Usually the drives with higher data density die much sooner than the old drives. With certain exceptions, like when manufacturers changed technologies or firmware/mechanics issues. The big exception seems to be WD Blue. Most WD Blue drives I've seen were ones already with issues/failures. I am yet to see other drive, worse than WD Blue. All with bad sectors. But you do know that Blue means "Sad" too, don't you? Even Hitachi Deathstars are much more reliable than WD Blue.
In my field of work, most of our computers are just "terminals''. Hard drive is required only to boot, open a program, which saves information on a server and work locally with word/excel documents before saving them on a file server. So, hard drive deaths are hardly critical issue for me and I use drives until bad sectors appear. But I do regularily monitor the drives on the servers, where RAID 1+0 is used and I do have backup of the information in case of...two drives from my raid failing simultaneously. The thing that is worrisome about the hardware RAID controllers that if they do die, even if all the drives are fine, you gonna have extremely bad day. My opinion about Seagate, Toshiba, even Hitachi drives is much more positive. And WD series different from Blue seem to handle themselves better.
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Useful conversions. I don't "speak" imperial. Please use metric, if you want to address me. 1km=1000m=100000cm, 1inch=2.54cm, 1mile=1609.344meters, 1ft=30.48cm 1gal(US)=3.785liters, 1lb=453grams, 1oz=28.34grams Last edited by televizora; 01-01-2022 at 07:48 AM.. |
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#97 |
Solder Sloth
Join Date: Nov 2012
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![]() Yay? Been running badblocks -w on this disk until it stops puking bad blocks. It hasn't stopped yet.
Code:
5 Reallocated_Sector_Ct 0x0033 169 169 140 Pre-fail Always - 241 7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0 9 Power_On_Hours 0x0032 040 040 000 Old_age Always - 44419 196 Reallocated_Event_Count 0x0032 001 001 000 Old_age Always - 214 197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0 I'm hoping I could squeeze more life from this disk and use this as a backup disk if it can somewhat still reliably retrieve information, or at least if it won't fail at the same spot as the other disk being backed up. Then again if one completely fails it's a problem (which would be implicitly a failure at the same spot...or technically, all spots.) |
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#98 |
Solder Sloth
Join Date: Nov 2012
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![]() Nope!
Code:
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 134 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 15 BTW what's the "standardized" number of sectors for a 1.5TB and 1TB disk? I've noticed most 2TB disks were standardized across models and brands to 3907029168 sectors or something... |
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#99 |
Solder Sloth
Join Date: Nov 2012
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![]() Here we go...
Made a 1.4TB partition (supposedly good), a 250GB partition (bad stuff), and the remainder (about 300GB, supposedly good). Merged the first and third partitions with volume management... and now we'll see how this ~1.7TB volume goes... |
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#100 | |||
HC Overclocker
Join Date: Jul 2012
City & State: Singapore
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![]() Quote:
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i noticed that the standardized number of sectors all seem to like ending with 168 for some reason. for 500gb hard disks, its 976,773,168 lba sectors. even the ssds seem to follow this convention! ![]() ![]() ![]() however, i didnt junk the spinning clunker disk just yet. i put it on a modular bay hard drive caddy to function as a backup drive now to backup the ssd because when ssds fail, all the data gets hosed and becomes irrecoverable, so its still good to use as a backup drive, just in case. being magnetic, it wont care about the backup writes being done on it unlike nand flash. so yea, use em till they drop, folks! maximize your dollar! ![]() |
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