Can You Use Registered Ecc Memory As Unregistered
how crucial is ECC RAM for my server
TL: DR- im planing deploying a depression load (less than x active local networked user, depression. no of exterior visitors. ) unmarried server, running print server, file server, and LAMP.On top of LAMP ill be running, Owncloud and dolibarr ERP sofware. it only stay on during work hours.
Is ECC RAM crucial on my setup?Long story. i have been running these services for a while now (except for dolibarr which is hosted online) on
several old destkop course PCs, NON-ECC retentiveness with little trouble.
to reduce cost and simplify maintainace, im thinking of making a simpler setup and consolidating them all on 1 device (planning to get a new HW)
Stuff i read on forums is giving me conflicting views, some says ECC RAM is a must, while other says it is optional, every bit long as it is not extremely high load, availability & sensitive, like banking(where a unmarried mistake could cost a fortune).
To add more to the confusion, some vendors are marketing obvious desktop course setup equally server solutions.
then i need a clarification, if not, at least a consensus. Is ECC RAM mobo crucial for my setup? how severe & frequent is the corruption if i apply NON-ECC RAM?
i do have a disaster direction programme (run automated databse backup, twice a day, to 2-iii online storage as redundant fill-in.)
lastly, could you give me some setup examples where ECC RAM is needed? so that i can get a better understanding.thx.
Re: how crucial is ECC RAM for my server
It boils down to speed versus reliability. It depends what yous are doing and what your goals and the limits of your scope.I "was" a hardcore old-schoolhouse server admin, in that about ix years ago, in regard to servers upwardly to that betoken: Raid, Cards, SCSI > SATA, ... ECC Registered Retentiveness. ...and I was chasing the newest and most reliable hardware, which is a moving target.
Out of 14 servers here, they have all evolved. A lot of my RAID (most) when to software RAID, or went away completely for other solutions. All but one is running ECC-R RAM. Basically, EEC-R systems have a less likely alter of crashing. It still happens, but the odds are with you.
I went back to school, and then other things evolved. I left Win in, because they gave me licenses, and I needed then to support my coursework. (and so now not "all" Linux Servers: 1 Solaris and one Win Server Host.) On that one, I went for a new system with the option to go either ECC Registered, or normal retentivity. I went with Gsaming retention for less that i/iv the cost of ECC Registered. (128G RAM max unbuffered) ECC Registered is slower but much more reliable. Because of it being more than reliable, that same system is configured to become 1T with EEC-R. Besides, 64G sticks of DDR3 EEC-R are like an Gold... but you don't get the downwards the resalable investment back. Then y'all need to figure out if the results of the trip along the way is paying you back.
In your telescopic, unbuffered would piece of work and exist cost efficient. The reliability factor of memory concerns detection, and correction of memory errors. When we expect at applications were those are well-nigh important, we retrieve of scientific, financial, and file servers . So what you need to weight when looking at "Should I do this to save money?" is weighed confronting the question, "How important is the accuracy, integrity, and the security of my information being there worth it to me?" At some point, is spending the money protecting your investment or a stumbling block in getting there.
Now a days, if the telescopic may change, I look for a server solution that is scalable. As memory goes, with systems that takes both, y'all could ever install with not-ECC, so later on upgrade to EEC-R. That is what I did with my last server ... and has washed fine for me so far.
Re: how crucial is ECC RAM for my server
yeah, i thought so too.
the plan was, if after research shows that ECC is not required, showtime with non-ECC, upgrade just if needed, since non-ECC dont lose much of its resale value and ECC retention toll more initially.
that mode if i dont demand information technology i can relieve some, and if i exercise need it, i would only pay a trivial bit more than in total cost of the arrangement, since non-ecc ram can be easily re sold.
if research shown otherwise, might likewise save the trouble and get ECC.but enquiry has shown me conflicting views. i'm hoping that this forum would provide clearer insight
Re: how crucial is ECC RAM for my server
That new server of mine... I play and examination with. I exam virtuals and play games on. I button it very hard... and with not-ECC gaming retentivity it screams and take no retentivity errors. I could yet go with ECC-R but...8GB DDR3 non-ECC = $40 x 12 = 96GB, $480
32GB DDR3 ECC-R = $500 x iv (becuase mine you have to go by groups of iv) = 128GB, $1000.
Re: how crucial is ECC RAM for my server
ECC if data loss is an issue. You can't "upgrade if needed". you Volition find out when you lot demand it that data is decadent
anyway for your server normal RAM is good enough, just go a quality 1. and too make good backups (since you have some ERP on it)
Re: how crucial is ECC RAM for my server
i think you lot misunderstood when i say upgrade if needed. i meant, if information loss is frequent, similar >6x/per twelvemonth, then i would alter to ecc ram (im buying a ecc capable mobo).
Originally Posted by mastablasta
ECC if data loss is an consequence. You lot can't "upgrade if needed". you Will find out when you need it that information is corrupt
anyhow for your server normal RAM is good plenty, just become a quality one. and also make good backups (since you have some ERP on it)
im planing on doing twice a day, daily minor backup (data only), stored for a week, then 1 major monthly backup, stored for half-dozen calendar month, on two off site storage.
im also doing a weekly hdd image backup on an external non-raid hdd
i forgot to mention, im leaving the ERP database on the electric current online hosted server.
then overall in the issue of arrangement failure, outage should theoretically short@MAFoElffen
thats y i accept reservation on buying ecc ram immediately. it is so expensive.
i will merely buy if the cost is justified.
Re: how crucial is ECC RAM for my server
I might be wrong, but I take always considered ECC equally a device to help you avert corruption in the RAM, non for more stability or to avoid crashes... A memory that offers yous Fault Correction helps y'all protect against data abuse.Imagine the following situation. The data goes through the non-ECC RAM and role of information technology (few bytes) get corrupted. In that location is no mechanism to find that. It is rare, but it does happen. After the RAM when the data is written to the deejay it is already besides late. The data has already been corrupted compared to the original, and is written to deejay as corrupted (changed). No raid or backup can help you there, because you are backing upwards already corrupted data.
That is what mastablasta said, you will notice that out merely at the moment when you need that particular information... You will see that y'all tin't read it.
Having said all that, I do think manufacturers/vendors charge too much for ECC retentivity. And taking into account how rarely errors happen on non-ECC it is really difficult to decide whether it's worth the extra money.
As well to comment the ECC-R that MAFoElffen mentioned. I believe he wanted to say ECC Registered. Actually there is also Unregistered (Unbuffered) ECC retention, oft called ECC UDIMM. Non-ECC tin can only be unbuffered only ECC can be unbuffered (UDIMM) or registered (RDIMM).
The ECC RDIMM is the well-nigh expensive, and so comes the ECC UDIMM which should cost about double of non-ECC UDIMM. And it still offers error correction. Whether information technology is worth that money only you tin decide...
Darko.
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Ubuntu eighteen.04 LTS 64bit
Re: how crucial is ECC RAM for my server
Yes. As Darko said, I was referring to ECC Regisitered... Yous tin usually get used UDIMMS for about half the price of RDIMM, just at that place is a reason for that, a lot of people reselling UDIMM's bought them past mistake... There is not a lot of motherboards today, that can use UDIMMS. And unremarkably if information technology uses ane blazon, it doesn't used both types. Certainly, out of all the servers I take here, none of them can utilise UDIMM memory.
Also to comment the ECC-R that MAFoElffen mentioned. I believe he wanted to say ECC Registered. Really in that location is as well Unregistered (Unbuffered) ECC memory, often called ECC UDIMM. Not-ECC tin can simply be unbuffered but ECC can be unbuffered (UDIMM) or registered (RDIMM). It really didn't catch on... and I call up it fell out from the likewise many choices kinds of matter (at to the lowest degree around here.)
The ECC RDIMM is the near expensive, then comes the ECC UDIMM which should cost nearly double of not-ECC UDIMM. And it even so offers error correction. Whether it is worth that money just you tin can decide...
Only in the past 3-4 years have they started making boards that have retentivity controllers that can sense and use both Unbuffer non-ECC -OR- ECC Registered memory.
Another note on memory: Some server board "makes" are touchy nearly retention. IBM and Some HP'south are two that seem to be "sensitive", plenty that they recommend using their ain "certified" (to work in their servers) memory, while nether their warranty and service contracts. That is in the IBM's Virtualized Active Memory Sharing Pools and HP's Advanced ECC modes. Dell, Tyan, ASUS and Supermicro... don't really care that much and seem more tolerant.
Last edited by MAFoElffen; January 26th, 2016 at 02:39 AM.
Re: how crucial is ECC RAM for my server
if it'due south for a company use ECC. individual server non ECC should be fine. they know companies Will employ ECC so they have a higher cost.companies can afford it. information technology's an investment. it's also a cost (tax deduction, tax breaks?!).
yeah it'due south really like insurance companies... for example chances of hail that Will exist big enough to ruin the roof is actually pretty depression, but many people would notwithstanding insure it for that consequence. you never knwo when it might happen and when information technology does it Will be cheaper than to pay for the whole roof.
similar here - you won't see the upshot unit of measurement it is too late.
Re: how crucial is ECC RAM for my server
Continue in listen that all older hardware and most newer hardware uses either ecc or not-ecc, in that location is not much out in that location that yous tin can choose. Also the CPU either supports it or doesn't, you need to check both parts.http://www.servethehome.com/unbuffer...udimms-rdimms/
ECC lets you correct some information errors in RAM, and find others. Note that this usually just happens on systems which are always on and go long times between reboots. Information technology also happens more than when hardware gets older. If the register has 1 data error it can be corrected, if it has two then information technology can exist detected. In the 1-bit scenario you gain something in that an fault is transparently stock-still. In the second scenario y'all proceeds in that your bad data is not written to the deejay or used in a critical transaction.
Registered retentivity is important if there are a lot of retentivity modules on your organization. Electronically speaking it takes power from the CPU to read memory. To get effectually this they put a annals (like to a CPU register, or similar to one total-width unit of RAM) in betwixt the normal stick and the bus, it's built into the memory stick. That register volition read the value coming back from the module and latch information technology under its own power, making information technology easier for the CPU to read/write.
So filter that through your original requirements:
Speaking FOR ECC retentivity, yous mentioned an ERP app. In my stance if you're doing business organisation finances on a calculator that means hands-down y'all want as much error correction/detection in the hardware as you tin can become. Too IMO that means yous have a computer which handles your ERP and nothing else. My auditor says she builds her computers from the official sources (Microsoft, etc) and then disconnects the computer completely. No software updates, no Internet, no wifi, no flash drives, no CDROMs, no electronic anything which did non originate in her office. She does backups which volition never be attached to a network-connected device, one goes to an on-site burn prophylactic and another goes to an off-site safe deposit box. I think that's a little farthermost but she correctly says this is the only way to ensure no malware or security breach happens.
Speaking Confronting ECC retentiveness, you mentioned that y'all turn the computer off frequently. That matters.
In the over-all toll of your reckoner, the difference between ECC and non-ECC is small. If yous're getting new hardware for a business so I personally think registered ECC is the only way to get. Used retentiveness was mentioned in a higher place, it might be feasible for a workstation or a personal setup, just there's no way I'd put it in a business server that actually mattered.
Source: https://ubuntuforums.org/showthread.php?t=2310954
Posted by: worleycale1965.blogspot.com
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