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That's probably more hardware RAID related (TLER) unless the drives actually failed.  I don't think that is the case here.  The WD Reds are made for arrays and two of the four failed within 2 weeks.  Could be a bad batch but considering the other situations, I'm leaning towards something else...

Well, the drives that were in the system were Seagate SV35 which conveniently ended warranty right before they had shown the read failures. The drives I replaced them with were new WD Red 3TB.

I purchased as a storage server, it turns out it was a very bad purchase.  First, we had a RAID6 fail on us twice (up to 4 drives would randomly fail in the array).  The server originally came in with a dented power supply and a bent hard drive cage, which made us have to pry it open just to...

Well that may be the right type of approach as it may require a lower setting to attempt to truncate unused blocks.  Using that logic, I wonder if this approach would work: vzctl set VEID --diskspace 1M So by setting a ridiculously low value, my assumption would be that OpenVZ would first...

Interesting, seems simple enough and a useful workaround for now for ploop admins.  Do you have to set a different diskspace amount or can you just reset the same value repeatedly?   I don't use ploop anymore on my systems so I can't test but thanks for sharing.

So what'd you do with the last attempt?  Just reset the diskspace and it trimmed it on its own?

I saw similar results with my testing of ploop.  It wasn't a huge deal for me because we tend to have plenty of free space on our nodes.  I'm not sure why there  I think the discard issue will be always be present on ploop because of its design of a filesystem over a filesystem.  The first...

All of the Dual L5420 we have used have been PC2-5300P.  So just the standard ECC registered DDR2-667, not fully buffered. Edit:  This includes 3 different MFGs: Supermicro, HP, and Dell.

My fault for skimming, I missed that in your OP. So you're in Korea?  I was going to say that after all the expenses, it would probably be best for you to sell the Dual L5420 and buy a used tower on eBay but I'm not sure if the market for servers/workstations is as largely available in Korea as...

That's your first issue.  ITX cases are for ITX motherboards,  You won't find many server boards in ITX form factor and definitely not a dual processor one. A second issue would be cooling.  You need to account for the passive cooling of the processors.  Rackmounts typically use passive...

Texas is one of the few states without an income tax, so they have to get their state revenue from somewhere I suppose. Florida also doesn't have an income tax, but if you ever drive through it, you'll see how they get their money.  Toll roads galore.  Only been to Texas once to be honest so I...

Or there are 500 virtual servers sharing that system.  It is all relative with virtual servers.   A VPS on a Xeon 5400 could be faster than a VPS on an Dual E5-2600 depending on how many users are sharing the system and what the neighbors are running.   Hardware is more important for the host...

There isn't much of a difference between CL9 1333 and CL11 1600.  1600 is faster but the latency holds it back and I haven't seen any 1600mhz ECC registered less than CL11, only desktop memory.

He hit the nail on the head.  You can also use tracert to diagnose connection issues by seeing if other people are able to connect to the site.  It's also amazing how popular some web sites in Asia are compared to Google.  Always seem to have 20+ viewers compared to 10. </sarcasm>

Ext4 isn't being made aware of the delete, that is the problem.  Just from normal usage before we started doing compacts, we saw ploop images that were over 100GB with servers that were only using* ~40GB.

I am not entirely confident in that resolution but I didn't have enough time to debug further or expertise in ploop to state otherwise.  We already started moving servers away from ploop to a custom solution. While writeback mode did seem dangerous with how ploop works, one of the other servers...

It depends on what you're running.  Our processor intensive line runs mostly on E3s because of users who need higher clock speed.  An E5-2600 series with only ~2GHz clock will perform worse for heavy single threaded applications than an E3.   It all depends on the purpose the node serves.

Unless it is a new host or a large corporation, I would suspect a single host does not have one default configuration.  I know for a fact we build different configurations every 6-12 months and usually have servers in service for up to 3 years.  How do we compensate?  We provide users more CPU...

I'm not sure I follow you.  You should be storing the master password in one table, and their other passwords in another table.  The master password would be the cipher password, but it wouldn't need to be stored more than once.  They would need to enter their master password to retrieve a...

openssl_encrypt() allows you to use various ciphers to encrypt data in 2-way encryption.  I would use the $password as the master password for that user.  For storing their master password, you should use one-way encryption with a salt, require minimum security requirements, and you would also...