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Is Raid 0 worth it?

INSTG8R

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Yikes....

1. RAID IS NOT A BACKUP!!!!!
2. TRIM is supported in RAID and has been for a couple of generations on the Intel side...
3. Do you need the speed and cannot afford an SSD or need the space? Then R0 a couple of HDDs.
Nobody said it was?
 

INSTG8R

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I thought it was alluded to in a post (#21? "RAID 1 has more sense")... regardless, it is worth it to say outloud a bit more clearly in case anyone has any ideas. ;)
The SPEEEED!!!! ;) That is my MO anyway

 

brandonwh64

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I had two 256 samsung evo's in raid 0 and then went to a 512 samsung pro. the 512 pro seems quicker and more responsive than the raid 0 setup
 
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Meh my 2 1TB WD Blacks would disagree ;) At least 5yrs going. Were my main drive for years and now my dedicated gaming array. My 1TB Seagate I use for storage is the one drive I have that is "going" I'm gonna grab a 1TB WD Blue to replace it next pay cheque as THAT drive I would worry about losing.
HDD don't fail that often, but it certainly happens, thus RAID 0 for a little performance increase is not worth it. RAID 1 is unnecessary for the average consumers, but for medium or large companies it's actually a very good idea. It's better to buy a faster HDD or fast SSD and combine it with fast HDD for storage/data and external HDD for back-up.
 
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On ssds no on hdds yes with the condition you don't place anything of importance on them.
 

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As someone who had an SSD RAID-0, I can say that it's not a bad option if you can get two SSDs for a better price than a single one of equivalent size. So for me, the only time you really notice the bandwidth is when you're copying a lot of data at once but, that's an edge case. I feel that RAID-0 is just as responsive as one drive which is just as responsive as the PCI-E M.2 SSD in my laptop for work. If you look at my specs, you'll see though that the RAID-0 isn't my only RAID, I have a 4 disk RAID-5 with 1TBs which gains me redundancy and mass data storage that is separate my my operating systems which go on the SSDs. The benefit is that even if an OS explodes on me or if my RAID-0 gets decimated, everything that matters is on the RAID-5 which is more reliable than the RAID-0. It also enables me to quickly blow away the OS if I need to without worrying about my data but, as everyone loves to point out, redundancy is not backup, which is why I have another RAID-5 in my gateway server which houses copies of the really important things.

With that said, even my RAID-5 gives me decent numbers (300MB/s isn't unrealistic,) so, it's not like everything needs to be on the SSDs either which is probably why I've gotten away with not replacing them with something bigger.

2. TRIM is supported in RAID and has been for a couple of generations on the Intel side...if it isn't working, there is an issue somewhere: http://www.anandtech.com/show/6161/...ssd-arrays-on-7series-motherboards-we-test-it
I do think that X79 requires RSTe to gain TRIM in RAID mode but, my knowledge could be out of date. The OP hasn't said anything about his machine though, so anything is probably going to be speculation.
 
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TRIM in raid works only from raid0 since Z77. Not working in raid5. BTW your raid5 is done on the Southbridge of the x79?
 
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Now a days.. I'm not so sure, with SSD's and the speed increases.. Not to mention you have 0 redundancy with raid 0..
I liked 0+1 with HDD's but again, Idk with SSD's..
I guess if you are transferring huge amounts of data it could be...
 

Aquinus

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TRIM in raid works only from raid0 since Z77. Not working in raid5. BTW your raid5 is done on the Southbridge of the x79?
X79 has 2 SATA3 ports and 4 SATA2 ports. The SSDs are on the SATA3 and the 1TB WD Blacks are on the SATA2. There is a Marvell SATA 6GB controller on the P9X79 Deluxe but, it only drives a DVD drive and a 500GB Seagate Constellation ES. Benchmarks suggest that it can't fully saturate a SATA3 SSD and only has two ports. Needless to say, I've maxed the motherboard out on it capabilities short of getting a dedicated RAID card. Just for clarification, on skt2011, the PCH is basically the south bridge since both the memory controller and the main PCI-E root complex has been moved to the CPU (hence the insane number of contacts on skt2011 for all of those DRAM channels and PCI-E lanes,) so...

TL;DR: Yes, both the RAID-0 and RAID-5 are off the X79 PCH.

Side note: Despite my 3820 having 40 PCI-E 3.0 lanes, the PCH has another 8 lanes of 2.0 which is a lot of I/O for someone who might care about something other than gaming.

Edit: For yucks, this is what Linux is claiming for latencies and read speeds. The SSD run was from about a month ago and I just ran the RAID-5 one now. I have zero complaints about my machine. In fact I have zero plans for upgrades at the moment (even if I did have the money.) :laugh:
upload_2016-9-18_21-0-1.png
upload_2016-9-18_21-6-46.png
 
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Not to mention you have 0 redundancy with raid 0..

Yea but you also have zero redundancy with a single drive. So since the OP only has two drives, only raid 1 will minimize data loss.

BTW your raid5 is done on the Southbridge of the x79?

There is no southbridge on the x79.
 
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HDD don't fail that often, but it certainly happens, thus RAID 0 for a little performance increase is not worth it. RAID 1 is unnecessary for the average consumers, but for medium or large companies it's actually a very good idea. It's better to buy a faster HDD or fast SSD and combine it with fast HDD for storage/data and external HDD for back-up.

Medium to large companies store their data on a proper san, which while they have "raid" settings it doesn't equate to the raid settings on local storage based raid controllers. most of those san controllers have multiple levels of raid before the user space configuration portion. add it tiered/cached storage and comparing it to local raid is pointless.

even the places I've worked that have local only storage. raid 1 for the os drive has been being phased out in favor of a single ssd. with data stored on a raid 5 or 6

rebuilding VMware on a box takes a few minutes once you have the drive in place. and since VMware doesn't really tax a local drive with writes they will outlast the servers usefulness in most cases.

a truly large enterprise is either not going to have local storage at all ( VMware runs nicely from the san). or in cases like google they've given up on raid and just have 40 machines with the same data in a cluster and rebuild a machine if it dies.

for workstations there are very few that will have any form of raid at a large company. workstations are a disposable asset except for a few "professional workstations" that wind up in the programmer/design folks hands. everyone one of those I've touched in the last few years has been raid 5 for data and a single ssd for os and religiously backed up.

the only time i'd raid an ssd is for space purposes. raid 1 makes no sense to me for them. sure you have the ability to keep running in case of a rare drive failure. but if the file system tanks you're still screwed. i'd rather clone the drive every now and again and have a spare.

if you're going to spend money on raiding ssd's you should also invest in a proper raid controller. this gives you write caching which helps drive life. and if something should die the raid controller rebuilds it without the massive hit you get from most embedded sata controllers. a proper raid controller also can do fun stuff like use a ssd for caching data from a large spinning disk stripe. so the games you play often get moved to the ssd automatically. switch games and the data will switch.


Yea but you also have zero redundancy with a single drive. So since the OP only has two drives, only raid 1 will minimize data loss.

a nightly backup will also minimize data loss.
 

Aquinus

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a truly large enterprise is either not going to have local storage at all ( VMware runs nicely from the san). or in cases like google they've given up on raid and just have 40 machines with the same data in a cluster and rebuild a machine if it dies.
Or they're going to pay to get a service like Google GCE or Amazon AWS to scale to their needs simply by using a friendly interface or via REST APIs. At work we use Google and if one of the cloud servers gets funky (even the database,) we can destroy it, re-create it, and point san storage towards everything that matters.

In defense, there are some things that are on premises that matter a little more like a phone (PBX) server, gateway, firewall, VPN, etc. but, that really depends on the business, how small or big it is and it's demands on networking infrastructure. So for the PBX, if you don't have a RAID that has redundancy then if a drive fails, you lose everyone's voicemail. Now wouldn't that suck? Either way, there is a time and a place for RAID.
 
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Or they're going to pay to get a service like Google GCE or Amazon AWS to scale to their needs simply by using a friendly interface or via REST APIs. At work we use Google and if one of the cloud servers gets funky (even the database,) we can destroy it, re-create it, and point san storage towards everything that matters.

In defense, there are some things that are on premises that matter a little more like a phone (PBX) server, gateway, firewall, VPN, etc. but, that really depends on the business, how small or big it is and it's demands on networking infrastructure. So for the PBX, if you don't have a RAID that has redundancy then if a drive fails, you lose everyone's voicemail. Now wouldn't that suck? Either way, there is a time and a place for RAID.

thanks. I neglected to cover clouds.
 
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hi people, I have a question about RAID 0, should I do this for my 2xToshiba 2TB drives or it's not worth it? I'll use this for some of my games that are not on the SSD also for a few movies and music

Please advise :)

Thanks
 

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You're better off getting another 2TB and running RAID-5, at least that way you gain redundancy while still having RAID-0 like read speeds (RAID-5's down side is write speeds because of parity.) You can run RAID-0 but, you probably won't notice a difference. A lot of the benefit that comes from SSDs is low access latency, something that adding more drives doesn't typically get you.
 
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Benchmark Scores not benching anymore...
im using RAID 0 on my home PC,
but its hooked up to an LSI 8i controller, and its a 600GB 15k SAS drives,
the only upside is the read/write speed which scrapes a single SATA3 SSD.
load times are also quite fast with this setup

but i dont suggest building RAID 0 for any important data, one power outage, bye all the data.
i'm rather confident with my setup because its an enterprise SAS drive, which should last a bit longer than normal consumer drive
 
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I am not looking at this as a long term option...I will do this only for a limited period of time until I buy a 1TB SSD for my games
 
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I am bored and this is a thing I've never done before :D
 
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I run RAID 0 with 2*500GB (5 years old) WD enterprise drives, only because they are for holding files which are real-time synchronized to dropbox.
Imho, RAID 0 can be used if the files on it are frequently backed up to a safe storage. For example, it is not a bad idea to set a 3*NVMe 960pro as your boot drive, with making sure you do daily backup.
 

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but i dont suggest building RAID 0 for any important data, one power outage, bye all the data.
That's inaccurate. A power outage won't cause any more data loss than in any other RAID configuration (or non RAID for that matter.) The kicker with RAID-0 is that if a drive fails, everything is gone with it since data is spread out among several disks. RAID-5 and 6 work the same way but, an extra block (or two for RAID-6,) are stored so it's possible to recover from drive failures.

With that said, I've lost power and have had my machine crash with my SSDs in RAID-0 for years and it has yet to fail. I still put important things on the RAID-5 but, all in all, RAID-0 is only as good as the drives in the array. If the drives stay alive, so will the RAID.
 

dorsetknob

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Dorset where else eh? >>> Thats ENGLAND<<<
Raid in any array form or configuration is only as good as the drives it comprised of
more drives unless mirrored are more potential failure points this is why Enterprise seldom uses Raid0
 
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