Linux Storage Server Partitioning
Aug 13, 2009
Linux Storage Server Partitioning
We are puting together a Linux Storage server which will have 4 x 1TB SATA Hard Drives connected to Hardware raid configured at level 10.
We plan to use this box initially for NFS services but in the near future iSCSI targets so would like to make a setup optimal the first time.
What is the best way to layout the drive partition’s for this setup?
My thought is
-100MB /boot ext3
-Rest in LVM
--LVM Group
---LVM001 2048MB SWAP
---LVM002 10GB /
---LVM003 500GB /nfs
---LVM004 500GB /iscsi
Is this an efficient setup and provide a great deal of flexibility down the road? We will end up having more than one iscsi target running on this box in the end. Also does LVM experience a performance hit ?
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Apr 18, 2009
I just completed building a server and before sending to the co-lo company I realized that I have to advise them on HD partitioning and I am clueless concerning that.
Would you please share your suggestions on setup?
Hardware:
TYAN S7010 Dual processor Nehalem 5520
12 GB RAM Kingston ECC
4 X 1 TB WD RE3 Hard Drives
Seasonic 520 Watt PS
Chenbro RM 11704 1U Case
Control Pancel - CPanel
Applications - Mostly Blog Type Membership Sites (Joomla & Wordpress). I dont allow upload of photos or video, so its the MYSQL database that will continue to grow because of the article volume.
I am clueless on Linux performance.
Do I turn the 4 Hard Drives into one RAID array?
Or do I create 2 X 1TB Mirror sets?
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Apr 25, 2007
I have just purchased a "clean" server and I figured I was going to install cpanel on it. My question is; it it possible to successfully re-partition the server after CentOS has been installed on it during setup or does the ISP have to configure the different partitions (I'm guess the last option is the answer, as this would be the most logical way)
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Jul 1, 2013
I am having the problem that with certain domains when they try to login in to webmail they ares seeing:
Connection to storage server failed.
Under the login windows and they are now allowed access.
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Sep 20, 2007
I'm completely torn on going the absolute budget route vs spending more for something that'll allow easy upgradeability in the future. I basically need lots of space but file sending-- media like mp3s, video, etc.
it'll be raid 5 and I'll need at least 2-3TB initially but the ability to expand would be nice.
option 1:
nice chassis with plenty of hotswap bays with sas expanders
expensive sas raid card
option 2:
cheap chassis to serve "immediate" needs and go with more later.
not sure what I'd use as a card? maybe even onboard?
regarding reliability: I once saw a database of failure rates of different models. raptor was the most reliable of the "desktop" drives. anyone have the link? I'm wondering of the seagate ES drives are worth the extra money vs the non-ES drives. they're supposedely more reliable and the "server versions" of sata drives.
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Jun 15, 2008
i have an secondary hdd 250Gb installed and partitioned with fallowing info :
/dev/sdc5 92G 38G 50G 44% /backup
/dev/sdc6 42G 5.2G 35G 13% /stream
/dev/sdc1 97G 93M 92G 1% /home2
now i want to re-partitionning the hdd like this
200G /backup
50G /home2
what command chould i do ?
or simple merge /home2 to /backup partition .
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Nov 4, 2009
I've got another server comming online shortly which will be used for shared hosting. A Q9550, 8 GB DDRs, 2 1 TB SATA drives in RAID 1. I know everyone has different opinions and reasons for their partitioning decisions, so I wanted to get a feel on how you would partition the drives durring setup, and why you would do it the way you do.
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Aug 18, 2007
I'm gonna order my first dedi box. So one question comes up: How should i partition the HD ? It's a low end box with 120gb HD containing CentOS + Plesk, hosting 4-5 websites, nothing special.
Here is my plan:
Quote:
/ - 5gb
/boot - 1gb
/swap - 1gb
/home - 3gb
/tmp - 5gb
/var - 40gb
/usr - 5gb
/backup - 60gb
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Mar 29, 2015
when I go to open plesk the browser give me this:
ERROR: Zend_Db_Statement_Exception: SQLSTATE[HY000]: General error: 1030 Got error 28 from storage engine (Pdo.php:234)
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Jun 28, 2008
I got a new server from Nocster today with a 80GB drive. Went to look at my fee disk space and I notice the largest partition is only 48GB... yuck. Then I noticed the way they partitioned the drive:
Filesystem Size Used Avail Use% Mounted on
/dev/hda5 2.0G 332M 1.6G 18% /
/dev/hda1 99M 24M 70M 26% /boot
tmpfs 498M 0 498M 0% /dev/shm
/dev/hda8 48G 11G 36G 23% /home
/dev/hda6 996M 34M 911M 4% /tmp
/dev/hda3 9.7G 1.4G 7.8G 16% /usr
/dev/hda2 9.7G 201M 9.0G 3% /var
This is definately something I'm not used to. Putting all these things on seperate partitions like that is really going to make it difficult for me to utilize all my disk space. On every other server I've had, all the free space was under / with partitions just for /boot and /dev/shm. Is there anyway to fix this without reinstalling the OS?
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Jul 30, 2008
I'm currently trying to install cPanel/WHM on a :
Dedicated Server , Celeron 3.06 , 1GB RAM , 160GB HDD
O/S = CentOS 5.0 (Fresh install , i386)
and the installation can't be completed , it stops at different steps , one time it stops when installing Perl Modules , one time when installing Apache , one time it declares mirror list errors , ...
I have followed a normal installation procedure and before have had successful installations on XEN VPS machines without partitioning the HDD.
I didn't created the partitions as is suggested in cPanel.net guide.
Is it necessary to have different partitions? Can it be the reason of random stop?
Can hardware problems , HDD failure be the cause?
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Apr 8, 2015
My Centos server running Plesk12 is running scheduled backups every sunday 3AM.
The backup is configured so that it's created as a multivolume backup with a volume size of 2047MB.
The backup is placed on my Personal FTP repo (another plesk12 server mounted with big storage).
The backup content is configured to backup server config and content (all).
The problem I have is when the backup is running I can see that it creates the volumes and stores it locally. After it send all the volumes the the external FTP repo it will delete the local (tmp) data. See my attached screenshot for storage health during backup.
Is this behaviour normal? This way we can never run a backup to an external FTP repo when our server passed 50% storage. Is it not normal to:
- Create a volume
- Send it to FTP repo
- Delete volume locally
- Repeat until done
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Aug 17, 2008
I have 2 questions:
1) I have one 80Gb HDD and one 250Gb HDD ( all are s-ata ).
In which practical way they should be partitioned? I thought to setup OS on 80Gb HDD and /home on 250Gb HDD.
2) Which version of CentOS is currently the most stable for cPanel? I had an experince with CentOS 5, there were various problems with mail and mysql.. And now I want to install CentOS 4.6.
The server will have CentOS and cPanel installed.
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Mar 3, 2015
I am having problems with two accounts, I get the following errors:
Code:
Failed to copy files storage to destination path. stderr: filemng: Cannot open destination file '/var/www/vhosts/domain.tld/httpdocs/index.html.Chn3rn' System error 122: Disk quota exceeded stdout: filemng: Cannot open destination file '/var/www/vhosts/domain.tld/httpdocs/index.html.Chn3rn' System error 122: Disk quota exceeded
I have run the command
Code:
quotacheck -avugfm
And the output from the command
Code:
df -i
is:
Code:
Filesystem Inodes IUsed IFree IUse% Mounted on
/dev/vzfs 20000000 1542375 18457625 8% /
/dev/simfs 20000000 1542375 18457625 8% /tmp
/dev/simfs 20000000 1542375 18457625 8% /var/tmp
none 1415577 113 1415464 1% /dev
I am at a loss, I don't know what else to try.
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Jan 12, 2007
Is it true that grub won't boot if your raid array is bigger than 2 terabytes?
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Oct 31, 2007
building a mass storage server, but unsure whether it is better to go for most space per system, or most space per U.
Looking at making 2 storage servers sometime in the future, one more for performance (15k 300gb SAS drives) and another for more storage (bunch of 1TB SATA drives). Both would act as iSCSI targets and likely have multiple gigabit ethernet connections bonded together.
Some options I am looking at:
1) HP DL320s provides 12 drives in 2U, or 6 drives per U. Upgrade it to 512mb batter backed cache and it does RAID6. Probably the densest storage U.
2) Supermicro has a 3U chassis that does 16 drives, or 5 1/3 drives per U. Pair that with one of the newer Areca SAS controllers and up to 2gb onboard cache and it should scream.
3) Supermicro also has a 3U chassis with 15 drives... just 5 drives per U, though it is ~$200 cheaper than the 16 bay one. Probably a mute point, since either way, it is less storage per server and less storage per U.
4) Get a simple 1-2U case and use external JBOD enclosures. Could put in multiple RAID cards, hook it up to multiple 3U 16 bay enclosures, and really squeeze in a lot of storage per server.
Anyone else been in a similar boat? Overall, not looking for a real dense configuration, with like 10-20 servers of this config, so don't *need* to squeeze in more TB per U, but it is one way that I've been looking at it.
Perhaps, in a way torn between the pre-built DL320s and the white label Supermicro approach. DL320s is a nice packaged system, support, iLO, etc. Supermicro allows more space and likely more performance (Areca likely better than the HP SmartArray), but no iLO, no single source for support, etc.
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May 4, 2009
I have a question if it is possible to use my local server as database storage and even some uploaded files. I am planning to host my website even in a shared hosting server provided that I could used my local server as data storage.
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Oct 30, 2008
I'm building a storage server out of spare parts that are lying around here at the office. Purchasing a brandnew server kinda overshoots it's target, since all basic hardware is available lika a big Chieftec 4U casing with 2x 4drive SATA hotswap bays.
The machine will just be dumb storage for saving our backups.
The plan is to add a decent serverboard, proc and some ram as a baseline. On top of that a 3ware 8-port RAID-controller with 8 1TB harddrives (seagate has some nice ones).
Now the only issue i'm having is powerconsumption. The case has an 460W PSU, but I'm not sure if that's enough.
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Mar 8, 2008
I have found SL can offer you 12*1 TB drive based systems, after RAID-5 and Win 2003 install you get just over 10 TB of storage. The monthly price works out to $1000/Month.
I know some time ago LeaseWeb offered these type of storages....any one else know of any others ?
Amazon S3 works out to about $1500 for 10 TB
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Mar 7, 2008
We are going to offer web space to our students and we want to build a new server just for this purpose. We were looking at buying a storage array, a RAID card, and a server. I have no problems building a server; however, I have never built anything with an external enclosure. I am thinking about buying this storage array:
www newegg com/Product/Product.aspx?Item=N82E16816702010
I plan on installing hard drives in every drive bay for a total of 12 drives.
The problem I'm having is I don't know what type of RAID card to buy. I saw this one; but, I don't know if it will work with this storage array.
www newegg com/Product/Product.aspx?Item=N82E16816116062
Thanks so much for any light you can shed on this! I apologize for the link but I do not have enough posts insert URLs.
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Oct 14, 2008
im running out of space on one of my sites but i have more then plenty of data transfer.
Unfortunately my hosting packaged it weird where they provide not enough hd space. Im trying to figure out is there a way where i can use another server or hosting company that can provide space only and use their servers just for space?
i think amazon.com offered this but wasnt sure how exactly this works.
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Feb 9, 2008
Not sure if this is beyond anyones experience here or knowledge but I thought I would give it a try here and see if I can get any insight on this.
Recently I had to work with a IBM xSeries 226 server which runs two SCSI Ultra320 drives in it at this time. I've actually purchased two extra drives for it but the distributor sent me the wrong drives for that server. Now they are saying its my fault of not proving them with more information but I think stating that I have two SCSI Ultra320 drives would be enough for them to send the right ones.
Now they sent me the IBM SAS Serial ATA SCSI drives, so I was wondering if anyone in here has enough knowledge to possibly provide me on the insight on the solution I think might be right to still use these two drives and not being stuck with a $2000 bill and two drives that I don't use.
My solution would be to buy one of the support or any Adaptec SAS Serial ATA SCSI controller cards and put it into one of the available PCIe slots and connect the drives. I've tried contacting IBM regarding this but they want $200 bucks just to say "yeah it will work or no it wont".
Logically I think it would work, the only thing I'm afraid is that let say I spend $400 - $1000 bucks on a controller card and it doesn't work they way you would think, then I'm out $3000 bucks. (drives are $2000 + $1000 for a controller card).
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Jul 8, 2007
I just clicked on the Lunarpages webhosting ad at the top of this forum. Not really hunting for hosting myself but regularly suggest places to clients.
I noticed something strange. Their business account has unlimited storage:
# Unlimited Storage
# 3500 Gigs Data Transfer
For 21.95 per month. That's more space than you get with their virtual private servers.
Now we know that's not possible, machines have limits right? I've seen other hosting providers offer unlimited features as well - and since all servers have limited space and bandwidth abilities how can they offer these types of services with out the FTC cracking down for false advertising?
Beyond that, I don't recommend any service that offers unrealistic plans. Am I just overreacting since it seems more and more common?
** note, this isn't an attack on Lunarpages. They were there and it made this thought pop in my head.
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May 30, 2009
I just like to thank Ryan from Aquarius Storage for helping me the other day set up my test account and test the server's loading time with my website. I now have fully transferred from my previous host, PeachyDandy, as my site loaded very slowly. I have now cancelled my account with PeachyDandy.
With Aquarius Storage my website now loads twice as fast as before. Site loading time according to Pingdom:
PeachyDandy - Average of 6 Seconds
Aquarius Storage - Average of 3 Seconds
Website - Mango Chico
Great job with the support Aquarius Storage! Moreover, the staff are very approachable and welcoming!
If you need speed, Aquarius Storage, is your hosting solution
Thumbs up Aquarius!
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Oct 2, 2008
My site is on forumotion right now. I want to move it and have it hosted somewhere. It is a local Mustang club. I have read all the problems with the oversold sites. I have also looked at others. The big issue is i dont rally know how much space I need. This is the site southshorestangs.com. What it will have is that forum and probably a few webpages. It is still only a month old so it will keep growing hopefully. i just dont want to get way more than I will need.
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Apr 9, 2008
Does anyone know of a good reliable and redundant method of organizing clustered storage? I know that IBM has GPFS - has anyone actually used it? Do they charge a crap load for it?
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Jun 11, 2008
We need a High Speed "FTP Storage Solution" for transferring our files securely between our offices.
requirements are simple:
1. High Speed / Good Port Speed in Megs.
2. Unlimited Sub-Accounts
3. Restrict Access by Sub-Account
4. FTP Based Access is Important
5. Ability to Create Read Only / Write Only Sub-Accounts
Space: 2 GB +
Bandwidth: 20GB +
Speed: Speed is Key For us. He need high speed Solution. Something in tune of Many MeGPS connectivity. Not shared.
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Sep 15, 2008
I've been with imhosted for a few years now. I have had horrible experiences with them with a lot of outages and lost data (2 days ago lost 6 months of data, they deny anything happened and have no backups).
I have been meaning to change hosts for a long time now but just haven't got the energy to wade through google trying to guess which have good SEO and which are the real deal.
Any recommendations for a host with the following features would be appreciated:
- PHP
- dedicated IP that isn't blacklisted
- fairly fast PHP processing time for some CPU intensive scripts
- MySQL (just a few needed)
- IMAP
Quality of support and uptime are important and I would easily pay an extra $10 / month for it. My budget is up to $25 / month or so.
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