Synonym for: RAM - Acronym for: Random Access Memory, a type of computer data storage.

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Linux server hangs and memory hits zero [closed]

I run a Debian Linux server (with Apache 2 and MySQL) on a virtual private server with 256 MB memory. (I also use swapspace package.) The system hanged. The memory graph (provided by the hoster) ...
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2answers
217 views

Moving a process to and from swap [closed]

I've got serveral processes (game servers) on my linux server that use up 50MB of RAM. They are not constantly being used, and I'd like to be able to run more instances than my RAM capacity allows. I ...
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175 views

How to read the address of the XSDT table, as provided by `acpidump`?

I want to access Physical memory in BSD. acpidump -t XSDT > xsdt_dump.asl it is giving: /* RSD PTR: OEM=ALASKA, ACPI_Rev=2.0x (2) XSDT=0x9aae8070, length=36, cksum=164 */ /* XSDT: ...
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1answer
116 views

Memory usage on my firewall [duplicate]

I have a memory usage problem with my Checkpoint Firewall (it's a physical firewall). On my monitoring software OPManager I can see that 94% of my memory is used. In SSH, when i enter this command : ...
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2answers
904 views

What is using the RAM on this Ubuntu 12.04.2 server?

I have two servers in a pool with Nginx, PHP5-FPM and Memcached. For some reason, the first server in the pool seems to inexplicably lose about 2GB of RAM. I can't explain where it's going. A reboot ...
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2answers
141 views

Being DOS'd or need more memory?

I have a centos 6 server running apache2, php and MySQL. The apache config has a few virtual sites as the server runs six websites, three of the six sites use MySQL and the other three do not. ...
2
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1answer
584 views

What kind of memory for Hp Proliant dl380 g4

I am trying to figure out what kind of memory this Hp Proliant DL380 g4 needs. I can see that it will take PC2-5300 ddr2 memory from this HP article ...
2
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1answer
203 views

FBDIMM Thermal/TDP Issue

I've got a 2U dual Xeon server with 8x 2GB DDR2 FBdim/ECC ram, on an intel s5000PSL board. It's stable, the ram memtests clean and both CPUs are running cool (35C). Half of the sticks run ~60-65C, ...
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409 views

“Unballooning” RAM that's been ballooned by VMware

Given the constrained RAM situation described in this question, what is the cleanest method (manual or programmatically) to: Identify VMware virtual machines whose RAM has been reclaimed by the ...
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2answers
2k views

vSphere education - What are the downsides of configuring VMs with *too* much RAM?

VMware memory management seems to be a tricky balancing act. With cluster RAM, Resource Pools, VMware's management techniques (TPS, ballooning, host swapping), in-guest RAM utilization, swapping, ...
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1answer
102 views

How is the Total Virtual Memory Calculated in this server? [closed]

From the images below, I am not sure how the 'Total Virtual Memory' available is shown as 7.82 GB in the system information (winmsd.exe) ? I always though it is nothing but the page file size ...
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124 views

OS available RAM and application JVM setting

I am a newbie to servers and management and I am trying to understand the relationship between RAM and JVM. Say, I have a server having 16 GB physical memory (RAM). I have an application running in ...
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4answers
398 views

What is the *optimal* virtual memory configuration for this server? [closed]

I am maintaining a Small Business Server 2003 (x86) server, that was originally installed and configured by someone else in early 2009. Recently, although we have never had any obvious memory-related ...
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1answer
87 views

Accurately get memory usage on Linux

I am trying to incorporate this feature into a script I am writing. From what I understand "free -m" does not report accurately. From what I understand the memory is used, Linux does not "free" it ...
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2answers
2k views

How do I find the root cause of Memory pressure failure on an SQL server 2008?

One of the servers I have been performance monitoring started throwing the following warnings from the Resource-Exhaustion-Detector: Windows successfully diagnosed a low virtual memory condition. ...
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2answers
227 views

RHEL: What happens when memory starts to fail?

I'm getting ecc warnings from some server RAM. It's a pretty old machine so there isn't any warranty on these parts. If this were Windows I would expect to see BSOD. What can I expect from RH5.x?
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1answer
47 views

Is there any big changes if I use different VPS with better RAM? [duplicate]

Currently, my Rails app is working on a server with 1GB RAM. I feel it's so slow so that I'm planning to shift to better Server. There are 3 choices such as 2GB, 4GB, and 6GB. or 2GB with SSD. Is ...
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4answers
263 views

Allocated Memory difference in xen guests with Linux 2.6.18 and 2.6.32

Can some one explain me why there is difference in available memory on Guests with same configuration: Hypervisor:xen 4.2 64 bit VM1: Centos 5.7 with 2.6.18-274.el5xen, Assigned memory from xen is ...
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1answer
23 views

One Slower/Larger VS Two Faster/Smaller RAM [closed]

Generally speaking, performance-wise, which one is the best (putting brands aside)? 1x 8GB 1333MHz RAM or 2x 4GB 2400MHz RAM Both DDR3.
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2answers
375 views

How do I find the total RAM dedicated to apache web server?

I am trying to figure how how much RAM my apache web server is currently using and how much RAM is it allowed to use. The ps command in linux can give me the memory usage on a per child process ...
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2answers
1k views

Dell Power Edge 2950 - E211 SBE LOG DISABLE DIMM6

Any idea of what this error E211 SBE LOG DISABLE DIMM6 could mean? Anyone have experienced this? I know that it sound pretty obvious, that is the 6th bank of my memory, and guest what: I have ...
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2answers
431 views

Debian error : edac mc0 internal error

I have a problem on last Debian Server. I have this error written every seconds on my screen : EDAC MC0: INTERNAL ERROR: csrow value is out of range (7 >= 4) edac-utils give that : mc0: 0 ...
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1answer
128 views

Apache process races away (process size explosion)

I come here because I have searched and tried different optimization without finding any answers. We have a server with four websites hosted. The frequentation is not very high (we are sure that the ...
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1answer
646 views

Very high memory usage, but not claimed by any process?

While stress-testing LVM on one of our Debian servers, I came across this issue where memory would fill up a lot to the point where it would run the server out of memory, but no process would claim ...
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204 views

Mass memory used, buffer free, no apps started

Have searched for many times before asking for my problem. I've 6gb RAM, 4 currently used, 2 free, buffers are low # free -m total used free shared buffers cached ...
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274 views

How to avoid Memory “Hard Fault/sec”

i've a problem on my windows 2008 server x64, and i cannot understand how can i solve it. i'm looking to Resource Monitor and see about 100 to 200 hard faults/sec. and generally the machine is slow. ...
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2answers
916 views

Windows Server 2012 vs Windows Server 2008 on 1gb of ram [closed]

I will be purchasing a vps soon and I there are two possible operating system that I can use, Windows Server 2012 Standard and Windows Server 2008. The vps will only have 1gb of ram. Memory wise what ...
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1answer
91 views

idle proccesses and high memory bad? uwsgi/django

I have a VPS with 256MB of ram. I'm running nginx, uwsgi and postgresql on Ubuntu 12.04 for a soon to be Django site. About 200MB of ram are being used despite the website not being active, the uwsgi ...
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1answer
146 views

Varnish memory management

I have a rather 'dumb' question regarding Varnish. I've been reading info on Varnish cache storage types and yet don't understand what would happen in following: Imagine we have 2GB of free memory. ...
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2k views

Is it necessary to burn-in RAM for server-class hardware?

Considering the fact that many server-class systems are equipped with ECC RAM, is it necessary or useful to burn-in the memory DIMMs prior to their deployment? I've encountered an environment where ...
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1answer
1k views

How can the Private Bytes of a process be significantly less than its effect on the system commit charge?

On a 64-bit Windows Server 2003, I can see using taskmgr or process explorer that the total commit charge is around 3.5GB, yet when I sum the Private Bytes consumed by each process (by running pslist ...
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88 views

How much memory should I allocate for host OS when virtualizing [duplicate]

I would like to buy a dedicated server and virtualize it. Details: Host OS Ubuntu 12.04 server OS Setting up 3 VMs. 2 serving web applicaitons with php/Mysql + nginx and 1 running bugzilla. With ...
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1answer
276 views

Can anyone identify this eMMC card socket? [closed]

It's not mSATA or PCI-e mini card. Any ideas what socket this eMMC fits into?
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2answers
515 views

How to read memory usage in htop?

It's my htop output: For example, I'm confused by this ruby script: How many physical memory is it using? 3+1+8+51+51? 51? 51+51?
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32 views

Running “top” memory seems high? [duplicate]

I'm not a Ubuntu expert, but I've just ran top on a Ubuntu server box and Terminal has highlighted the results in red, it looks pretty high to me. Is this right? I'm only really running Apache and ...
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813 views

Apache httpd process using too much memory

I am running a dedicated apache web server on CentOS6 it has: 12GB memory 4 cpus My httpd config is as follows, from /etc/httpd/conf/httpd.conf Timeout 60 KeepAlive Off MaxKeepAliveRequests 100 ...
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154 views

How to install different RAM modules

I have different RAM modules - 2Rx8 and 2Rx4 . How can I install all of them in one server? Tried putting all 2Rx8 in one Branch and 2Rx4 in another, but it didn't work. Branch0 | Branch1 ...
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90 views

How to protect against in-RAM attacks

Since hosting providers are constantly under attack from hackers, encryption of the entire file system (the entire server) with tools like www.truecrypt.org seems like an absolute must to me, if you ...
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3answers
194 views

I put 4 gigs of RAM into a new server, why does it say I have only 3462960k RAM?

I put 4 gigs of RAM into a server, but when I look at the command line why does it say I have only 3462960k RAM? [root@localhost ~]# cat /proc/meminfo MemTotal: 3462960 kB [root@localhost ...
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2answers
111 views

How to determine if you need to upgrade memory?

My CentOS server's munin graph shows high swap, but the amount of apps memory seems low. Does this still mean I need to upgrade my memory? What is causing all that swap? Is it because of the ...
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82 views

Upgraded SQL server, performance plummets

Seeking help with a new SQL server. A client of mine was running an aging SBS 2003 server (Xeon 3060, 4 gig of RAM) and a line of business application with a 25 gig SQL Database using SQL Server ...
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169 views

What could increase the consumed server memory amount when just upgrade the RAM?

Is there any reason that could cause more memory consumption on a windows server 2008 when upgrade the RAM from 2 to 3 or 4 GB? I have noticed that the server used memory was about 1.5 to 1.8 GB when ...
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1answer
93 views

SvcHost using too much RAM

I have a problem. A specific instance of SvcHost is using way too much ram (680MB). I've found that the following services are running under this process: I've stopped and then started all services ...
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1answer
149 views

Over committing memory failing with out reaching half of actual RAM

I am running centos 6.4 with 2.6.32-358.6.2.el6.x86_64 which is actually running as a xen vm with ram 2 GB On this i have set cat /proc/sys/vm/overcommit_memory 2 But when i try to start my ...
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69 views

How to see what is cached in memory in SQL server 2008?

Is there a way how to find out what is cached in SQL Server 2008 R2? I have found the following nice article here: ...
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0answers
273 views

CentOS 6.4 on Hyper-V memory exhausting issue

I am having an issue where the RAM on the virtualised machine is becoming exhausted after periods of time, the machine itself has 4GB RAM assigned to it and it always seems to be reporting around 15% ...
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3answers
426 views

Server crashes Sundays at 6 a.m. - out of memory

I have a weird problem: Every Sunday at 6 am my LAMP server crashes. Looking at the logs I see about 500 apache2 processes at the time (this is a test server without any load - especially not at 6 am) ...
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1answer
590 views

Error with MySQL server: Can't create a new thread (errno 11)

I am currently stress testing my PHP, MySQL application hosted on AWS EC2 using Amazon Linux. After reaching certain number of users DB starts to give error: Can't create a new thread (errno 11); if ...
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1answer
398 views

Mysql crashing due to InnoDB not able to allocate memory

MySQL crashes every now and then due to, I believe, a large request hitting it above the innodb-buffer-pool-size set in my.cnf (currently at 210M), which I needed to set for mysql to start in the ...
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0answers
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Sun Fire V40z, big gap between memory reported by dmidecode and what the Linux kernel sees

I'm looking after a V40z (a loaner), running RHEL 4.8 (no, I can't update it, it's a loaner) that according to dmidecode has 8 DIMMs of 2048M each, which makes for 16GB RAM as far as I'm concerned. ...