Optimal HDD And Filesystem Settings For Web Hosting
Dec 29, 2007
I am in the process of configuring my volumedrive dedicated server and would like some input on ideal settings for my filesystem.
I'd appreciate suggestions and explanations of what they options do.
Here is my system info:
Linux volumedrive.com 2.6.18-53.el5 #1 SMP Mon Nov 12 02:14:55 EST 2007 x86_64 x86_64 x86_64 GNU/Linux
CentOS release 5 (Final)
AMD Sempron64 3000+
1GB RAM
HDD:
Location: SCSI device B
Cylinders: 60801
Size: 465.76 GB
Model: ATA ST3500320AS
Seagate Barracuda 7200.11 ST3500320AS 500GB 7200 RPM
32MB Cache SATA 3.0Gb/s Hard Drive
Parameters I can change:
EXT 3 File System Configuration Options:
Block size
Fragment size
Bytes per inode
Reserved blocks
Journal file size
Edit IDE Parameters
Transfer mode: Default mode / Disable IORDY / PIO mode 1,2,3,4 / Multimode DMA 0,1,2 / Ultra DMA 0,1,2
Using DMA: On/Off
Sector count: 256
Read-lookahead: On/Off
Write caching: On/Off
Interrupt unmask: On/Off
Keep settings over reset: On/Off
Keep features over reset: On/Off
Read only: On/Off
Reprogram best PIO: On/Off
Standby timeout: 0
32-bit I/O support: Disable / Enable / Enable with special sync sequence
Sector count for multiple sector I/O: Disable 2 4 8 16 32
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Jul 7, 2009
I have the following config:
Centos 4.7 Final
Apache 2.2
PHP 5.2.9 (suphp / suhosin disabled)
MySQL 5
Server: Dual Xeon, 4GB Memory
I'd like input on the most optimal settings overall
php.ini
Quote:
; Memcache Section
extension = memcache.so
memcache.allow_failover = 0
extension="eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/tmp/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
;;;;;;;;;;;;;;;;;;;
; Resource Limits ;
;;;;;;;;;;;;;;;;;;;
max_execution_time = 300
max_input_time = 600
memory_limit = 256M
httpd.conf
Quote:
RLimitMEM 473331029
RLimitCPU 240
ErrorLog logs/error_log
DefaultType text/plain
AddType text/html .shtml
ServerLimit 1000
KeepAlive On
MaxKeepAliveRequests 64
KeepAliveTimeout 1
MinSpareServers 5
MaxSpareServers 15
StartServers 30
MaxClients 850
MaxRequestsPerChild 64
HostnameLookups Off
UseCanonicalName Off
my.cnf
Quote:
[mysqld]
local-infile=0
datadir=/var/lib/mysql
skip-locking
skip-networking
safe-show-database
query_cache_limit=2M
query_cache_size=128M ## 32MB for every 1GB of RAM
query_cache_type=1
max_user_connections=350
max_connections=600
interactive_timeout=10
wait_timeout=28800
connect_timeout=20
thread_cache_size=128
key_buffer=512M ## 128MB for every 1GB of RAM
join_buffer=8M
max_connect_errors=20
max_allowed_packet=32M
table_cache=1024
record_buffer=8M
sort_buffer_size=4M ## 1MB for every 1GB of RAM
read_buffer_size=4M ## 1MB for every 1GB of RAM
read_rnd_buffer_size=4M ## 1MB for every 1GB of RAM
thread_concurrency=8 ## Number of CPUs x 2
myisam_sort_buffer_size=64M
server-id=1
collation-server=latin1_swedish_ci
[mysql.server]
user=mysql
old-passwords = 1
[safe_mysqld]
err-log=/var/log/mysqld.log
pid-file=/var/lib/mysql/mysql.pid
open_files_limit=8192
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Apr 13, 2008
I just purchased a dell poweredge in order to move my website to its own dedicated server. I have a few questions on the best linux partition setup for a webserver. The system has 8 gigs of ram, raid 10 setup with four 15k rpm drives and two quadcore cpu's.
The os is CentOS 5.1
The server can have up to 30,000 uniques in a single day and can be somewhat database intensive.
Does anyone have a recommend partition setup, besides the default?
With 8 gigs of ram, what is the recommend swap? I've seen rules that say anything over 2 gigs of ram, the rule is S = M+2. So that would put me at 10 gigs swap. Is that overkill?
Should i make a seperate partition for log files?
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Jul 26, 2007
We have a very small server/network/telecommunications room with one server rack housing 2 racked Dell servers, 2 3com router, 1 switch, 2 UPSes and 2 tower servers.
In addition, our phone system is housed in this room.
The temperature is normally about 77 degrees Fahrenheit. It is a VERY small room and central air does not reach the room. Their is only a portable A/C(I guess its fairly powerful) that we leave on all night and day at its max. However, the temperature stays about a constant 77 degrees.
I read in some articles that the temp should be about 58 degrees Fahrenheit. Is that true?
Is our equipment being damaged by the temperature in the room?
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Apr 10, 2009
on the optimal setup for a new clients project. We currently host with eUKhost and have been very happy with them in terms of support. They offer a range of hi-end dedi servers but as with everything in life, cost is an issue.
The 3 servers I am looking at are:
Quad Core Intel Xeon X3360, 2GB Ram, 250Gb Sata, 100Mbit - £170 pm
Quad Core Intel Xeon X3353, 8GB Ram, 2x500Gb Sata, 100Mbit - £260 pm
Dual Quad Core Intel Xeon X5420, 12GB Ram, 2x500Gb Sata, 100Mbit - £419 pm
I know that obviously if money was not an issue, the last server would be the best, but I wonder if this is absolutely necessary for the website. Here are the anticipated site specs....
Portal site with anticipated traffic of around 5,000 visitors online at any one time, searching around 1,000,000 business listings and around 500,000 classifieds ads. Most listings or ads would have multiple pictures on their pages and there will be a reasonable amount of advertising on each page.
My question is whether the system will function adequately with a lesser processor and more Ram, or whether its the processor that gets the database searching speedily.
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Mar 31, 2014
Panel-Version11.5.30 Update #38
BSDebian 7.4
Save Web Hosting Settings takes a long time. The Domains (Apache Server) are not reachable for 36 seconds.
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Jun 10, 2014
I'm trying to run a simple bash script when a new account is created, because I need to move some files automatically. So what I did:
I have created a simple bash script for testing if Plesk run it, called move_some_files.sh under /var/www
Code:
#!/bin/bash
echo "${NEW_SYSTEM_USER} ${NEW_DOMAIN_NAME}" >> move_some_files.log
I created this file as root and did chmod +x.
I created a new 'Hosting settings created' event running as root and with the highest priority with this command: /var/www/move_some_files.sh
I created a new customer with to test it
But, is not running the script! If I try some command directly on the event like 'touch /var/www/new_file' it's created, so the event is running, but not my script.
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Jun 6, 2009
I currently have a VPS. I have installed cPanel/WHM + CSF Firewall.
Everything is fine and all the ports are closed except for the ones I need.
I currently have some issues I need to fix, but google isn't helping
Quote:
Check /tmp is mounted as a filesystemWARNING/tmp should be mounted as a separate filesystem with the noexec,nosuid options set
I tried googling this and there was a cPanel script but I do not have permission to run it. So does anyone mind explaining it to me one step at a time?
Quote:
You should consider adding ini_set to the disable_functions in the PHP configuration as this setting allows PHP scripts to override global security and performance settings for PHP scripts. Adding ini_set can break PHP scripts and commenting out any use of ini_set in such scripts is advised
I have disabled this in php.ini but I do not know why it still says that I have to fix this
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Feb 26, 2008
I have a server with pacificrack. When I see my website it says "Read-Only File system" and my SSH dies with read-only file system errors.
It happens once per month, and the bad thing is I'm sleeping when it happens so I don't know my server is in this state.
Even though support fixes the problem within 15minutes of my support ticket, my server is down for hours because I don't know its down to then raise a ticket. I asked support why it happens and they never tell me... just tell me to read the logs but I'm not technical enough to understand linux logs etc.
Server is centos.
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Jun 4, 2007
Somehow the filesystem on my server turned read-only. The databases would not connect. When I rebooted the box it would not come up.
Support had to run FSCK. Even after, the databases had to be repaired using the CPanel tool. Things seem to be ok now, however:
1. What could have caused this to happen? Software or hardware failure?
2. I get these notifications, should I be worried?
WARNING: Kernel Errors Present
EXT3-fs error (device sda2): e...: 1 Time(s)
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Jul 3, 2014
OSMicrosoft Windows Server 2008 R2 Service Pack 1
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When we change a Basic Hosting plan to Windows Advanced using "Change Plan", it will reassign the subscription/domain to use the new plan, but it will not add-on the extra features in Hosting Settings.
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May 23, 2008
We're considering deploying a large server that will have 8x 500GB drives in a RAID-10 config. I intend to use a 3ware 9650SE w/ BBU along with A/B power to each of the PSU's.
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May 30, 2007
I have WHM/cPanel server.
I am installed ConfigServer (Firewall)
On configserver it says " /var/tmp should either be symlinked to /tmp or mounted as a filesystem" how can i do this?
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Oct 5, 2008
I'm currently connecting one of my servers to an iSCSI SAN but would like to hook up another server to that target as well. However, this doesn't work with NTFS filesystem and I couldn't really find any windows solutions for that. Does anyone have experience with this?
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Mar 16, 2007
My /etc/fstab:
Code:
# cat /etc/fstab
# This file is edited by fstab-sync - see 'man fstab-sync' for details
LABEL=/1 / ext3 defaults,usrquota 1 1
LABEL=/boot /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /dev/shm tmpfs rw,noexec,nosuid,nodev 0 0
none /proc proc defaults 0 0
none /sys sysfs defaults 0 0
LABEL=SWAP-sda2 swap swap defaults 0 0
/dev/sdb1 /backups ext3 defaults 1 2
Code:
# /scripts/fixquotas
Installing Default Quota Databases...../aquota.user..../quota.user..../boot/aquota.user..../boot/quota.user..../backups/aquota.user..../backups/quota.user.....Done
Quotas are now on
Updating Quota Files......
quotacheck: Can't find filesystem to check or filesystem not mounted with quota option.
quotacheck: Can't find filesystem to check or filesystem not mounted with quota option.
....Done
AND
root@srv01 [/www/logs]# /scripts/initquotas
Quotas are now on
Updating Quota Files......
quotacheck: Can't find filesystem to check or filesystem not mounted with quota option.
quotacheck: Can't find filesystem to check or filesystem not mounted with quota option.
....Done
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Feb 19, 2007
i had to do a file system back up because of the size of my database.
i shutdown postmaster and tar'd the files.
i recently reloaded my OS and now i'm attempting to restore the backups. i first shut down postmaster, restored the backups to the data folder and restarted postmaster.
i then su'd from root to postgres user:
Code:
[postgres@austin1 pgsql]$ psql service_2_3
psql: FATAL: database "service_2_3" does not exist
DETAIL: The database subdirectory "base/16385" is missing.
the backups had a database named service_2_3 but upon restoring the backups, it doesn't seem to be available.
my data directory is /var/pgsql/data.
Code:
[postgres@austin1 pgsql]$ ls -lahR /var/pgsql/ | grep 16385
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have i done something wrong while backing up? i don't think i have since i followed the postgres manual when backing up. but the administrators have not been very thorough with how they've set the system up for me.
how i can resolve this issue if you have the time.
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Jul 31, 2007
Code:
Installing package webmin-1.350-1 needs 1 inodes on the / filesystem
Hmm, this is the first time I've encountered this error when installing Webmin and I have no idea what it means. My other servers doesnn't output this error.
What does it means by it needs 1 inodes on the filesystem?
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Jan 19, 2008
Does writing large files (ie, 10GB backups in one archive) cause any risk of damaging a linux filesystem?
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Jul 25, 2008
i have a 32 GB hdd the results of df command are:
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 32G 29G 715M 98% /
/dev/sda1 99M 14M 81M 15% /boot
tmpfs 1.5G 0 1.5G 0% /dev/shm
so there are 29GB used
but the du command shows only 19GB used:
du -hs /
19G /
where are the remaining 10GB from 19GB to 29GB?
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Jul 1, 2007
how to set up dns correctly as I have been trying for over a day now and not succeeded!
The situation is that I am using whm/cpanel. I have a domain hosted with godaddy that I want to point at my vps space. I have entered the nameservers into godaddy, and it now shows the placeholder page when I go to my domain.
I have set-up a user with ftp access to my main domain in whm, and uploaded an index page to test.
If I type in my domain name it goes to the godaddy placeholder page, if I type in the IP address it goes to an apache 'great success' page, and if I go to the same IP but with the users name added, it goes to the index file I uploaded.
I have played around with dns zones and A records but cannot get the index page to show when I enter my main domain name.
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Aug 20, 2007
Does the following setting of PHP look normal in a shared hosting environment?
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Jun 25, 2007
Our business is in the middle of changing to a Exchange based Email Platform which will be take effect in a few months, NOT NOW but planning ahead I'm trying to help with the DNS issues behind the scene. The current Host and Registerar is flarehosting. However I have just transferred the Domain Name to my NAMECHEAP account and need to take over the DNS Controls. I want to make SURE this is done without ANY downtime for the company (website, current email system). After contacting the current host for correct settings I have 3 things I need help with.
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MX is mail2.uploadmysite.com
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Jan 15, 2008
Now my site online users went more that 200,my max client is 200 now server load slow can i increase the max client to 250,
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Jan 29, 2008
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the magic_quotes_sybase directive must be set to Off.
the session.save_path directive must be set to a valid directory, or empty.
the file_uploads directive must be On.
the upload_tmp_dir must be set to a valid directory, or empty.
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Jan 28, 2008
I am being rejected by Hotmail when sending mail from my VPS. I want to send mails from punbb and OSCommerce, with various website hosted on one VPS/Cpanel/LAMP solution. And with sendmail or SMTP, it'a always the same : passing almost every ISP except Hotmail/Gmail. I also always get this part in my email header regardless of which website i'm sending email from :
Code:
Received: from host.locker4adream.com ([74.200.75.7])
by host.locker4adream.com with esmtpa (Exim 4.68)
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So i asked my host ro add rDNS. And I added this line to my DNS zone on my mail domain:
Code:
lockeradream TXT "v=spf1 mx a ptr ip4:74.200.75.7/32 ip4:74.200.81.156/32?all"
I am really out of solutions! Can anyone tell me if the SPF record stated above is ok?
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Mar 8, 2008
I'm running a pretty large site that brings in about 80k unique each month, what would be a good setting to lower sync floods settings in csf configuration?
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Apr 7, 2008
I have a dedicated server and have 5 IP addresses in all.
3 IP addresses i am using already.
I want to give 2 IP address to a site, i have created DNS for that site:
ns1.domainname.com
ns2.domainname.com
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Jul 12, 2007
Is there a way to make it only paypal verified people can order?
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Jan 19, 2007
I have over 200 bots or whatever they are are simply using over 200 differebt Ips to take down the site and they were sucessful to slow it down but now its working fine but with high loads I installed Dos_deflate and dos_evasive but can someone recmannd me the best dos_evasive settings to prevent these kinds of attacks
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Jan 20, 2007
I cannot compile software from source because:
Code:
/usr/bin/uname -p = unknown
/bin/uname -X = unknown
/bin/arch = i686
/usr/bin/arch -k = unknown
/usr/convex/getsysinfo = unknown
hostinfo = unknown
/bin/machine = unknown
/usr/bin/oslevel = unknown
/bin/universe = unknown
PATH: /usr/kerberos/sbin
PATH: /usr/kerberos/bin
PATH: /usr/local/sbin
PATH: /usr/local/bin
PATH: /sbin
PATH: /bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /usr/X11R6/bin
PATH: /root/bin
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