NAS (Network Attached Storage) Discussion Thread
#361
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Gotcha, well when you are ready to expand, be aware you will need to copy all your data off, add your new hardware, upgrade, and then transfer all your data back after you've set everything back up.
The key difference with XRAID is that, IIRC, provides the same functionality as RAID 5, but also provides automatic expandability when you swap drives. It's been used by countless readynas users for years now with success. It's what I configured my readynas to use from the start and haven't had any issues. Then again, I started with 4 drives and did a clean upgrade to be safe, but if you ever need to, it provides that extra bit of functionality that RAID 5 doesn't.
if you haven't already, check out readynas.com and the forums they offer. GREAT community and lots of information to keep you up hours at night if you like to read.
The key difference with XRAID is that, IIRC, provides the same functionality as RAID 5, but also provides automatic expandability when you swap drives. It's been used by countless readynas users for years now with success. It's what I configured my readynas to use from the start and haven't had any issues. Then again, I started with 4 drives and did a clean upgrade to be safe, but if you ever need to, it provides that extra bit of functionality that RAID 5 doesn't.
if you haven't already, check out readynas.com and the forums they offer. GREAT community and lots of information to keep you up hours at night if you like to read.
#362
Yea I know, I just like to have others try out "new" technology first before I do. haha, thanks for the info though.
Besides, I can't see myself needing more then 2.7 TB for a while, at least! So I wouldn't need to reconfigure my volume at this point in time or the distance future.
How you are liking it? What are your transfer rates like away from home?
Besides, I can't see myself needing more then 2.7 TB for a while, at least! So I wouldn't need to reconfigure my volume at this point in time or the distance future.
How you are liking it? What are your transfer rates like away from home?
#363
Team Owner
DSM 5.0 Beta for Synology devices is now released. I was surprised to see Chromecast support.
http://www.synology.com/en-us/dsm/dsm5_0_beta
http://www.synology.com/en-us/dsm/dsm5_0_beta
#364
Team Owner
Live Demo of DSM 5.0 is available here.
http://www.synology.com/en-global/products/dsm_livedemo
http://www.synology.com/en-global/products/dsm_livedemo
#365
Team Owner
DSM 5.0 is now released. Here's a review
Synology gets even better w/ version 5.0: Why every Mac & iOS user should have a DiskStation
http://9to5mac.com/2014/03/10/synolo...n/#more-314062
Synology gets even better w/ version 5.0: Why every Mac & iOS user should have a DiskStation
http://9to5mac.com/2014/03/10/synolo...n/#more-314062
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Ken1997TL (03-10-2014)
#366
Team Owner
Dsm v?
#367
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So Windows was less than friendly with supporting my 4 x 3TB Raid 10 configuration on my home server, so I'm thinking about switching my drives to one of these and running a striped mirror. Anyone have any experience with these?
http://techreport.com/news/25641/wd-...t-drives-power
http://techreport.com/news/25641/wd-...t-drives-power
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#1 STUNNA (06-12-2014)
#368
Go Giants
I have a much cheaper My Cloud and it works well.
#369
Sanest Florida Man
that looks bad ass
#370
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Just ordered an empty one, will post back once I get her up and running
#371
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#372
Needs more Lemon Pledge
#373
the overexplainer
anyone have experience with the thecus N5550? Pretty attractive pricing for an Intel Atom based NAS. I have a ReadyNAS 1100 that is utterly slow, loud, and consumes a decent amount of power in comparison to newer units.
#374
Sanest Florida Man
I so almost bought one of those a few days ago. It's cheaper to buy a disk less one and the WD red drives separately. Was going to get 4 x 3TB Reds too.
Ended up using the money to pay off my credit card instead
Do you have an Apple TV? Can you confirm that you can stream media from it via iTunes home sharing? It says iTunes support but want to be sure it can do that.
I almost bought the ex2 as well but the ex4 would allow me to have 2 raid 1 arrays, one for media and the other for PC backups. Plus the bit torrent and FTP capabilities that I don't think the ex2 has
Ended up using the money to pay off my credit card instead
Do you have an Apple TV? Can you confirm that you can stream media from it via iTunes home sharing? It says iTunes support but want to be sure it can do that.
I almost bought the ex2 as well but the ex4 would allow me to have 2 raid 1 arrays, one for media and the other for PC backups. Plus the bit torrent and FTP capabilities that I don't think the ex2 has
Last edited by #1 STUNNA; 06-29-2014 at 04:39 PM.
#375
Sanest Florida Man
Yikes! Apparently it does not support Homesharing only Apple's older shared library feature. That means no iOS/Apple TV support. That's probably a deal breaker for me
#376
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I bought the diskless one and threw my 4 x 3TB green drives in it, and no I don't use apple products
#377
Sanest Florida Man
I don't think WD greens are good for raid arrays
https://acurazine.com/forums/technology-16/just-you-stogie-what-hard-drive-should-i-buy-903812/
I learned my lesson with the WD blacks not lasting long too, the reds are designed for this environment. They're like prosumer versions of the WD RE enterprise drives
https://acurazine.com/forums/technology-16/western-digital-red-review-nas-optimized-hdds-worth-premium-866517/
https://acurazine.com/forums/technology-16/just-you-stogie-what-hard-drive-should-i-buy-903812/
I learned my lesson with the WD blacks not lasting long too, the reds are designed for this environment. They're like prosumer versions of the WD RE enterprise drives
https://acurazine.com/forums/technology-16/western-digital-red-review-nas-optimized-hdds-worth-premium-866517/
Last edited by #1 STUNNA; 06-30-2014 at 03:18 PM.
#378
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Yep, I'm aware. I bought them for a hardware raid on my motherboard, but Windows wouldn't support it, so I swapped them into this thing. We'll see how it works. They're on the supported list
#379
Race Director
I am in love with my Synology disk array.
DS1812
I have 6 3tb drives in the unit and still have space for 2 more.
I am using it to host my plex server (not running on the device but it could)
I had 1 problem after a power hit, it wouldn't let me log into the box but it was still serving data.
All I had to do was shut it down and pull all the drives and insert a blank HD and then just rediscover it and reload the latest version of the firmware.
Then reinsert all the drives and log in and use the sharing.
and the green drives are not designed for nas devices they will have problems
You will need the red drives or go to which ever device you buy and look for supported drives.
DS1812
I have 6 3tb drives in the unit and still have space for 2 more.
I am using it to host my plex server (not running on the device but it could)
I had 1 problem after a power hit, it wouldn't let me log into the box but it was still serving data.
All I had to do was shut it down and pull all the drives and insert a blank HD and then just rediscover it and reload the latest version of the firmware.
Then reinsert all the drives and log in and use the sharing.
and the green drives are not designed for nas devices they will have problems
You will need the red drives or go to which ever device you buy and look for supported drives.
#380
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#381
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^It'll be fine. Just don't expect to get the stated life out of them.
#382
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That's why I'm mirroring them
#383
Needs more Lemon Pledge
2 TB Seagate NAS HDD on sale at newegg for $99 minus $10 = $89 (limit 5).
http://www.newegg.com/Product/Produc...et_rid=4083283
http://www.newegg.com/Product/Produc...et_rid=4083283
#384
Go Giants
What makes it a NAS drive?
#385
Sanest Florida Man
works better in a RAID array? less prone to damage caused by vibrations from other disks?
#386
Go Giants
Never heard of a thing. Must be a marketing thing.
#387
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#388
Go Giants
ah
#389
Needs more Lemon Pledge
Just bought 5.
#390
Sanest Florida Man
This is Blackack's RAID array on WD Greens
This is Blackacks RAID array on WD Reds
http://www.pcper.com/reviews/Storage...ve-Full-Review
I'm going to let the cat out of the bag right here and now. Everyone's home RAID is likely an accident waiting to happen. If you're using regular consumer drives in a large array, there are some very simple (and likely) scenarios that can cause it to completely fail. I'm guilty of operating under this same false hope - I have an 8-drive array of 3TB WD Caviar Greens in a RAID-5. For those uninitiated, RAID-5 is where one drive worth of capacity is volunteered for use as parity data, which is distributed amongst all drives in the array. This trick allows for no data loss in the case where a single drive fails. The RAID controller can simply figure out the missing data by running the extra parity through the same formula that created it. This is called redundancy, but I propose that it's not.
Since I'm also guilty here with my huge array of Caviar Greens, let me also say that every few weeks I have a batch job that reads *all* data from that array. Why on earth would I need to occasionally and repeatedly read 21TB of data from something that should already be super reliable? Here's the failure scenario for what might happen to me if I didn't:
Since I'm also guilty here with my huge array of Caviar Greens, let me also say that every few weeks I have a batch job that reads *all* data from that array. Why on earth would I need to occasionally and repeatedly read 21TB of data from something that should already be super reliable? Here's the failure scenario for what might happen to me if I didn't:
- Array starts off operating as normal, but drive 3 has a bad sector that cropped up a few months back. This has gone unnoticed because the bad sector was part of a rarely accessed file.
- During operation, drive 1 encounters a new bad sector.
- Since drive 1 is a consumer drive it goes into a retry loop, repeatedly attempting to read and correct the bad sector.
- The RAID controller exceeds its timeout threshold waiting on drive 1 and marks it offline.
- Array is now in degraded status with drive 1 marked as failed.
- User replaces drive 1. RAID controller initiates rebuild using parity data from the other drives.
- During rebuild, RAID controller encounters the bad sector on drive 3.
- Since drive 3 is a consumer drive it goes into a retry loop, repeatedly attempting to read and correct the bad sector.
- The RAID controller exceeds its timeout threshold waiting on drive 3 and marks it offline.
- Rebuild fails.
Now you may be asking yourself how enterprises run huge RAIDs and don't see this sort of problem? The answer is Time Limited Error Recovery - where the hard drive assumes it is part of an array, assumes there is redundancy, and is not afraid to quickly tell the host controller that it just can't complete the current I/O request. Here's how that scenario would have played out if the drives implemented some form of TLER:
- Array starts off operating as normal, but drive 3 has developed a bad sector several weeks ago. This went unnoticed because the bad sector was part of a rarely accessed file.
- During operation, drive 1 encounters a new bad sector.
- Drive 1 makes a few read attempts and then reports a CRC error to the RAID controller.
- The RAID controller maps out the bad sector, locating it elsewhere on the drive. The missing sector is rebuilt using parity data from the other drives in the array.
- Array continues normal operation, with the error added to its event log.
#391
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This doesn't make sense to me if I follow his logic.
Why did it go unnoticed? It would seem to me that it doesn't matter if it is a frequently accessed file or not. The drive would have timed out from reattempting to access the bad sector and got marked offline, right? Also, history tells me that if a drive gets one bad sector it will quickly develop more.
He also does not make any mention of S.M.A.R.T. My Synology marked one of my drives offline because of S.M.A.R.T.
Array starts off operating as normal, but drive 3 has a bad sector that cropped up a few months back. This has gone unnoticed because the bad sector was part of a rarely accessed file.
He also does not make any mention of S.M.A.R.T. My Synology marked one of my drives offline because of S.M.A.R.T.
Last edited by doopstr; 07-13-2014 at 09:10 AM.
#392
Sanest Florida Man
I think he means there is a bad sector but the drive doesn't know about it because it was fine last time it was accessed but has gone bad since then.
I think I've only seen one time that SMART gave me an error message on a failing drive. In my experience SMART has been basically worthless at giving me a heads up of a failing drive
I think I've only seen one time that SMART gave me an error message on a failing drive. In my experience SMART has been basically worthless at giving me a heads up of a failing drive
#393
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This is Blackack's RAID array on WD Greens
This is Blackacks RAID array on WD Reds
http://www.pcper.com/reviews/Storage...ve-Full-Review
This is Blackacks RAID array on WD Reds
http://www.pcper.com/reviews/Storage...ve-Full-Review
Any questions?
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Whiskers (07-14-2014)
#394
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Glad I got those NAS drives...
#395
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#396
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#397
Oliver!!!
Would've loved to go with the Reds for my Plex server, but at $75 for 3TB greens I couldn't justify the price difference. May move to them down the road and as I need expansion.
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97BlackAckCL (07-16-2014)
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^+1