Plesk 12.x / Linux :: Setup Multi-server Hard Drive But On One Account
Oct 21, 2014
Not sure if I labeled that correctly, but I am looking to setup a multi-server where I offer a cloud ssd hosting plan, and sata hosting plan. The current setup has ssd hosting, but id like to add another ip address, as well as its hard drive to host other websites on that specific server, which is sata based.
For example, I add a domain to my plesk 12 admin account and choose the added Ip address (the sata based one), where it points to that server to access the files for that specific website.
At the moment, cloudflare handles all of my dns settings.. but I am totally lost on how this needs to be setup and if I am required to purchase another plesk license. I am trying to avoid purchasing another plesk license and having to setup a whole new plesk installation just to do this.. This is a vps by the way, not a dedicated server...
I am currently in the process of upgrading my web/mysql server due to heavy loads and io waits and have some questions. I am trying to be cost efficient but at the same time do not want to purchase something that will be either inadequate or difficult to upgrade in the future. I hope you can provide me with some guidance.
This server is a Centos Linux box, running both apache and mysql. The current usage on the box is:
Mysql Stats:
50 mysql queries per second With a ratio of read to write of 2:1 Reads are about 65 MB per hour and writes are around 32 MB per hour.
Apache stats:
35 requests per sec
The two issues that I am unsure of are:
- Whether or not i should go with Raid-1 or Raid-5
- Whether or not I should use Sata Raptor drives or SAS drives.
In either configuration I will use a dedicated Raid controller. If I went with SATA, it would be a 3ware 9650SE-4LPML card. If I went with SAS, I was looking at the Adaptec 3405 controller.
Originally, I was going to use 3 x 74GB Seagate Cheetah 15.4K SAS drives in a Raid-5 config. After more reading, I learned that raid-5 has a high write overhead. Though read is definitely more important based on my stats, I don't want to lose performance in my writes either. With this in mind, I looked into doing Raid-1 instead.
I came up with these choices:
- Raid-1 - 2 x Seagate ST373455SS Seagate Cheetah 15K.5 SAS. HDs & controller costs are $940.
- Raid-1 - 2 x WD Raptor 74GB 10K SATA 150. HDs & controller costs are $652.
- Raid-5 - 3 x Seagate Cheetah 15K.4 ST336754SS 36.7GB. HDs & controller costs are $869.
- Raid-5 - 3 x WD Raptor 36GB 10K SATA 150. HDs & controller costs are $631.
As you can see we are not looking at huge differences in price, so I would be up for any of these options if I could just determine which would give me the best performance. I also know that I should have a 4th hotspare drive, but will buy that later down the road to ease cash flow in the beginning. If I went the SATA route, I would buy the 4th immediately.
From what I can tell, both configs provide the same redundancy, but are there any major performance considerations I should take? From what I have read, scsi/sas can enable database applications to perform better do to a lot of small and random reads and writes?
I had a smart error emailed to me by the server, so I had Savvis do a hard drive test on my server. They told me my main drive has some bad blocks and is failing. I have a new drive in the tower as a slave already. I went into WHM and clicked in list accounts, the change partition button for a smaller account. That worked moving it from /home to /home2. However when I tried it with a larger account, it seemed to time out. I have all the clients moved accept one, who has a site with about 14 gigs of data.
I think the command would be: mv /home/admin /home2/admin
Is this correct, or is there a better way to do this?
Also if I move it in SSH, will WHM list accounts auto update itself, or will I need to do something for that as well?
any idea if this is possible? basically what i'd like to do is make a "virtual folder" in my linux box that is actually a connection to an ftp account on another server.
so for e.g. if i say cd /myftp it'll show the contents of that directory as though it was a standard folder, however it is actually connecting to some other machine via ftp?
I have my backup disks here because my server got hacked and we didn't like how liquidweb made the things. So we ask them to ship us the disk. They ran photorec and they got lots of .gz files from it. All accounts I would say. But 50% of them the .tar.gz files came corrupt. And is lefting all the big accounts and until now I haven't seen any corrupted file that came with MySQL. And I think MySQL is most important to all clients.
it looks like dell sell sas mainly without scsi now, with high load server,scsi and sas will better than sata, but the price of sas is higher a lot, i want to ask if you use sas hdd to run your hosting server? and if it is worth to use sas now?
What is the best way to setup my server hard drives for shared hosting? I have yet to purchase the hard drives. I was thinking of using two 250GB HD's or maybe a single 500GB HD. What is your experience with this in the past? Should I aim to use SATA or IDE? My thoughts are its better to have two drives for redundancy and performance.
My host and I discussed over a month ago the possibility of adding on another server so that I can use one for MySQL and the other for web, and eventually as my sites expand add a third one so that two balance the loads and the one will be dedicated just for MySQL.
Well, it's been a month now and I have had a server dedicated for MySQL and the other one dedicated for web set up. A month has gone by and my host and I are having problems setting it up - I have not been able to use the new server and have already had to pay the bill when I have not been able to use it for its purpose!
The old server was supposed to act as the MySQL while the new server was supposed to be for web. We are having so many problems trying to set this up, well at least my host is, and I am becoming more and more frustrated as the days go on because I am paying for the new server that I can't even use because it's not set up properly.
I am using DirectAdmin control panel and linking them is a pain in the butt. I linked my host to this article, but I don't think he's implementing what is being instructed to do: [url]
The new server is still not working properly with the MySQL server and I have no idea what to do here. I have already paid for a month's service for no reason and now I am starting to feel robbed because this process is taking so long.
I am willing to switch control panels if it will speed up the process. Does anybody know of any control panels that will be better suited for my need? I'd ideally like to simply manage both servers in one control panel - under one license - and manage each server's services and most importantly the MySQL and it's databases on the dedicated server for MySQL.
I am working on a busy and popular website which has a large amount of database activity - and requires hourly backups of all database data.
At the moment the site is hosted on two servers - one for the front end web server, one for the database.
Both servers are running a RAID HDD system which allows quick swaps of faulty HDDs without data loss. An hourly full backup of database tables is running which is killing the server when it runs.
ISP has suggested installing a third server to run as a slave to the existing DB server, and hence always hold a duplicated of the live database.
I have a feeling however that this is basically just like having RAID mirroring, but on a different machine - so to solve the problem of a potential dodgy SQL statement wiping out ALL copies of the live database, we'd STILL need hourly backups to run, and hence would still see the major system speed drop each hour at the time of backup.
I registered a domain name and setup a Linux server on GoDaddy, choosing Plesk panel with Power Pack. Inside the panel I created an email address, which I can access from the webmail interface without problems. I decided to setup my clients as well, using the IMAP configuration, as I'm using multiple devices.
I followed the instructions for Outlook express and I was able to setup the account on my virtual machine, with Windows 7 and Windows Live Mail.Though, speaking of the host machine, a MacBook Pro, I normally use Apple Mail that comes with MacOS. Instructions for setting up Mail are updated back to Snow Leopard at least and they do not work properly. I tried various configurations, but I was only able to receive mail on the account, while sending won't work at all.
I'd like Parallels to update the guide or, at least, to open a KB page with the solution(s) to this issue: I googled it and found out that it is a common issue.
I have a new CentOS 7, with Plesk 12, CentOS 7 by default has XFS filesystem.
I try migrate sites from another Plesk Server but Plesk agent say: "hard disk quota is not supported due to configuration of server file system" (my CentOS 7)
I added "usrquota,grpquota", then mount -o remount / ; but when I try quotacheck -fmv / I gest this:
[root@ns ~]$ quotacheck -fmv / quotacheck: Skipping /dev/mapper/centos-root [/] quotacheck: Cannot find filesystem to check or filesystem not mounted with quota option.
but quotaon command works:
[root@ns ~]$ quotaon / quotaon: Enforcing group quota already on /dev/mapper/centos-root quotaon: Enforcing user quota already on /dev/mapper/centos-root
The problem here is why Plesk does not recognize quotas as enabled on CentOS 7??
I'm about to purchase a 2nd server to be used as a database/app server alongside my current server (of which will be the web server).
I wish to use 2 x 146GB 10K SCSI hard disks (in RAID 1) on the database server, but will be keeping 2 x 320GB SATAII 16M in RAID 1 on the web server. Will the SATA hard disks affect the performance / effectiveness of the SCSI disks or will I benefit from SCSI even though they're only in the database server?
Also, I'm going for 10K hard disks over 15K because they $20 per month cheaper and it's already expensive ($150 p/m for the two 10K or $170 p/m for 2 x 15k). Taking into account the already hefty price, is it worth the extra for 15K?
I just leased a Godaddy linux dedicated server with a Cisco PIX 501 firewall. Control panel is Plesk 8. Preconfigured with Ferdora 7, mysql, php,etc.
I've tried to configure multiple domains but am having problems.
I currently have several websites each running on their own Godaddy shared hosting account. I'm am trying to migrate all of these websites onto the dedicated server.
My plan is as follows: Configure the firewall Configure the server (add IPs) Configure the domains from within Plesk (add client, domains, dns). But DO NOT change the name servers on the domain. I need to test the websites first. Copy the webpages, content from the shared hosting accounts to the server. Test the websites on the server. I am hoping that I can access the websites on the server using ip addresses, since I figure I won't be able to use the domain names without first changing the name server entries on the domains. Once testing is completed, change the name servers on the domains so they point to the server.
What I have done: Configured the firewall interface (outside = 72.169.55.184/24, inside = 10.0.0.254/24) Configured the firewall IP translation rules (outside = 72.169.55.183, inside = 10.0.0.1) Configured server (added 3 IPs - 10.0.0.1 [exclusive], 10.0.0.2 [exclusive], 10.0.0.3 [exclusive]). I figure I need a unique ip for each domain? Created a client called MyDomains. All domains are created under this client. Created domain mydomain1 (assigned ip 10.0.0.1 [exclusive]). Added services ftp, ssi, php, cgi, etc. DNS 'A' records all set to firewall ip 72.169.55.184 Created domain mydomain2 (assigned ip 10.0.0.2 [exclusive]). Added services ftp, ssi, php, cgi, etc. DNS 'A' records all set to firewall ip 72.169.55.184 Created domain mydomain3 (assigned ip 10.0.0.3 [exclusive]). Added services ftp, ssi, php, cgi, etc. DNS 'A' records all set to firewall ip 72.169.55.184
I might be close, or I might be so far off that my inexperience shows.
Is the above correct? Do I need a unique "inside" ip address (10.0.0.1, 10.0.0.2, 10.0.0.3) for each domain/website? Do I need to add translation rules to the firewall for 10.0.0.2, 10.0.0.3?
How do I test each domain on the server without changing the name server entries on the domain? I have one firewall ip address 72.169.55.184 but 3 different domains. How can I test mydomain1.com, mydomain2.com, mydomain3.com?
If anyone can tell me if I have this correct, or what I have to do to get this correct I'd be immensly appreciative. Just as important is knowing how I can test each domain before I go live with it.
Now iam useing 320Gig SATA harddrive as my primary hard drive,i dont use 2rd harddrive,iam haveing pure download site,in TOP command 4.5%wa is this bit high? or can i add 2rd harddisk and move some data to there to reduce wa,but my load of the server is fine or any way to reduce wa?
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
I installed the Google Authenticator extension, and the inevitable happened: my phone died.So now I am left without access to the Plesk panel.How can I disable the authentication in the SQL database, so I can login again?
[cPanel smartcheck] Possible Hard Drive Failure Soon
ATA Error Count: 1512 (device log contains only the most recent five errors) Error 1512 occurred at disk power-on lifetime: 11736 hours (489 days + 0 hours) Error 1511 occurred at disk power-on lifetime: 11736 hours (489 days + 0 hours) Error 1510 occurred at disk power-on lifetime: 11736 hours (489 days + 0 hours) Error 1509 occurred at disk power-on lifetime: 11736 hours (489 days + 0 hours) Error 1508 occurred at disk power-on lifetime: 11736 hours (489 days + 0 hours) ----END /dev/sda--
What do you advice me to do? ask the DC to change the Hard Drive or wait till damaged?
I have a terminal server with a bunch of applications on it, among which is a database driven app. There have been complaints that access to the db is sluggish. right now the server is on just one 7.2k drive.
I am guessing its a hard drive bottleneck because memory and cpu usage seems okay. I have a few ideas. Please tell me which of these you would recommend.
1. Upgrade entire server to raid 10 system.
2. Upgrade the entire server to a 5-disk RAID 5 system.
3. Create two raid 1 setups. One for the OS and regular apps, the second one to host the DB.
4. Create a raid 1 setup for the OS and regular apps, and a RAID 5 setup for the DB.
Ideally I would like to see improved read/write speeds on both regular files/apps and on the database. The RAID 10 system was what I was leaning towards at first because the stripping increases throughput, but then I realized I may see better performance by keeping the regular files and the DB on independent setups so that OS and file read/writes won't affect the DB read/writes.
I have never had a hard drive fail on me, i dont think the I/O on my servers would ever warrant it but im looking to ask people that have had a hard drive die one them the following:
1. Were you ever cautious before your hard drive failure or did you lose data and if you did lose data, did it make you buck up your ideas (i.e do you now have a solid backup plan or do you still play maverick)
2. If you have had a hard drive failure, has it made you, do you think, overly-cautious?
3. Has a hard-drive failure ever swayed you towards the more expensive raptor drives? and if so, why?
I just purchased a 500GB ATA hard drive (meant to get SATA but must have misordered, but I don't think it makes that much difference) to replace a 80GB SATA hard drive on a Windows Server 2003 server. There are two partitions on the 80GB drive, and rather than add the new HD as a third partition, I would like to clone the data on the 80GB drive to the 500GB drive, then increase the partition sizes and remove the 80GB completely. Is there a specific method or software I can use to accomplish this?
