Average Time To Recover A CPanel Server Drive Failure
May 30, 2008
As I have never used cPanel neither have whatsoever experience with control panels, in the process of ordering a couple of new server I am wondering what's the average recovery time after a server failure which involves data (ie. disk failure).
I am interested to understand this, because I need to choose between hardware raid or backup disk.
For example, at LiquidWeb (this is just one of the many managed providers i am evaluating) you can pay the same server 264$ with 2x250 hardware raid 1, and 219$ with 2x250 simple hard drives, where the second one is supposed to be a backup drive.
I am yet to ask, but on this servers most likely (at this prices) they do not have hot swappable disk drives where they can rebuild the array "live", so also if i choose raid hardware, in case of a disk failure, i face a downtime to bring down the server, rebuild the array, bring on the server, which I guess is something not less than 30-60 minutes downtime.
The advantage of this solution is that a disk failure keeps the system running, so you can schedule a maintenance window to replace the disk and rebuild the array, I guess.
On the other side, relying on a backup disk (and of course rsyncing data to an offsite server, i would do this anyway) you save 45$ each month, and disks after all do not fail every month.
If the main disk fails, they need to replace the disk, install again the server with what I suppose being a standard image (so let's figure a couple of hours, as they have a 30min hardware replacement sla), then you need to restore backups (which in my case are something like 20gigs). So I guess, on an average, it would take something like 4 hours downtime.
Am I correct ?
What would you reccomend as a solution with cpanel, taking into account the huge price difference ? Backup drive or Hardware raid ?
This would be for a single big website, not a hosting-company with resellers and customers environment, so I would value more the monthly saving, rather than the high availability, but of course I am interested to know what is the average time to recover a cpanel server after a drive failure.
Besides I have also another question, as I have never had a colocated server with raid hardware, so i do not know anything about this.
When a drive fails in a raid1 hardware environment, how the hosting provider gets notified ? I suppose it's not a led on the server to blink, as no one would see it.
So if you have software raid (like my computer at home) you get an email from mdadm with "warning, array degraded", so you know it quick and you can check it anytime doing a ' cat /proc/mdstat '. What about hardware raid?
My fear is that nobody notices my raid1 drive failure, the server keeps going on just a drive, then maybe the other drive fails, and it would be unpleasant: while a single drive failure would be obviously very easy to spot for me.
The host is going to mount this HD on the same machine after adding a new hard drive and fresh install... Does anyone have any recommendations for how I can go about recovering data? Specifically mysql databases?
S.M.A.R.T Errors on /dev/sdb From Command: /usr/sbin/smartctl -q errorsonly -H -l selftest -l error /dev/sdb Please note the following marginal Attributes: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 190 Unknown_Attribute 0x0022 054 037 045 Old_age Always In_the_past 46 ----END /dev/sdb-- i have done cpanel update in the log i have this error
Running Sanity Checks & Notifications...Using smartcheck config 5.32 for smartctl(5.33) Checking /dev/sda....Ok Checking /dev/sdb.... Errors: Please note the following marginal Attributes: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 190 Unknown_Attribute 0x0022 052 037 045 Old_age Always In_the_past 48
I received this a month ago and now ive just done a cpanel update and in the log i noticed this:
Running Sanity Checks & Notifications...Using smartcheck config 5.32 for smartctl(5.33) Checking /dev/sda....Ok Checking /dev/sdb.... Errors: ATA Error Count: 213 (device log contains only the most recent five errors) Error 213 occurred at disk power-on lifetime: 7 hours (0 days + 7 hours) Error 212 occurred at disk power-on lifetime: 7 hours (0 days + 7 hours) Error 211 occurred at disk power-on lifetime: 7 hours (0 days + 7 hours) Error 210 occurred at disk power-on lifetime: 7 hours (0 days + 7 hours) Error 209 occurred at disk power-on lifetime: 7 hours (0 days + 7 hours)
My VPS from VPSVille is down more than 6:30h i have immediately open a ticket and have not receive response my ticket status is NOT VIEWED. Usually their response time is way faster. I have open another ticket thinking that there is mabye ticket error and thay have not receive the first one and 1h befora i have open the fist ticket about the problem i have send them another ticket about sales and so far no reply.
I have sugest them multiple times and now i`m vary disapointed.
So what is your average responce time from your VPS provider about ctitical problem and ticket marked with HIGHT priority ?
I am wondering what you think the average amount of time it should take to setup a firewall under the following circumstances.
The firewall in question is a Cisco ASA 5505
Say you have the firewall now but it is unstable so you an RMA to replace it, all the config rules are already known and can be seen in the old firewall when the new one arrives. There are only about 25 ACL rules and 6 object-groups that the ACLs use. There is NAT running with ~23 IPs that are statically routed to internal IPs and it has a VPN configured.
How long do you think it should take to configure the new firewall to act like the old one and replace the old one?
[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?
so this is the second time I got an email like this from my server:
This email was generated by the smartd daemon running on:
host name: xxxxxxxxxxxxxxxxxxxx DNS domain: xxxxxxxxxxxxxxxxxxx NIS domain: (none)
The following warning/error was logged by the smartd daemon:
Device: /dev/sdb, 6 Offline uncorrectable sectors
For details see host's SYSLOG (default: /var/log/messages).
You can also use the smartctl utility for further investigation. No additional email messages about this problem will be sent.
What can I do about this?
I actually COLO a box.. I sent them the server NEW, and the drive failed a week after I sent them a new one. This SECOND drive is now having errors apparently.. what can I tell my tech to do about this? Please advise me on what I can do.. (There is a chance that this could be my primary drive)
I asked FDC to check the controller and drive, and they said there was nothing they could do.
I'm currently hosted on a VPS server with Galaxy Solutions, but just last night I was informed of a hard drive failure.
This morning they said the DC couldn't recover the data, and now they are trying to recover the data themselves. Right now I'm assuming that if the DC can't recover it, then there isn't much of a chance of it being recovered at all.
I've put in countless hours and dedicated so much of my time to my sites, something which certainly cannot be compensated for. I would like to exhaust any possible way to recover the data.
Can anyone recommend what I should do in a situation like this? Would it be advisable to consult a data recovery specialist? It would be great if you could also recommend one.
The cost doesn't matter. I'm extremely frustrated, annoyed, and confused because of all this. Just like that, all my work is gone.
I did have backups, but they were on the same server.
I bought domain name and web hosting from a company. Now the problem is that the company from which I booked domain and hosting doesn't exist.
Initially the hosting company sent me only FTP and mail server details. Now I need the cPanel details to configure database. So kindly request all of you to suggest me some solutions through which I can get the cPanel details.
I had an issue with limestonenetworks over the last 24 hours. My 2 servers went down for 12 hours but when it came back up the separate mysql server would not load?? Somehow the hard drive on that server failed during this upgrade and they cannot retrieve the databases on the server. A database containing over 60,000 members. Through my own undoing I didnt have a recent backup. A cpanel backup was backing up the same old file instead of the updated one.
I would have been happy if the site came back and at least the data was still there. Im just upset that this "network upgrade" has fried my database. From this I get the lesson "You get what you pay for". Im just keeping my fingers crossed that they will be kind enough to make a serious attempt to recover the data or at least let me send it to someone who can.
Does anyone have any suggestions on how to get retrieve data from a linux server hard-drive?
Here are the steps that have been taken so far:
Upon console of the server it was at DISK BOOT FAILURE prompt. We first did the basics and disconnected the server and made sure all connections to the hard disk and motherboard were secure. Upon reboot we checked to see if the BIOS detected the drive which it did. The server still reported disk boot failure. We then rebooted back into the BIOS to make sure the BIOS was set not skipping the hard drive in the boot process.
It was not.
The "recovery tools" we ran was just a basic linux live cd to see if we could get the hard drive detected inside of an operating system. It would not even detect the disk in the machine. We did not perform anything on the drive to cause it to fail. I spoke directly to my manager who was supervising the move and I was told that all servers were shut down cleanly as well as moved safely and securely.
The hard disk is still detected by the BIOS but the hard disk certainly has some internal issues as you can hear a constant buzzing and clicking during POST and after.
My server hard disk is crashed badly. The rescue function in the server cannot take part and so I've tried using some recovery software to get back my data.
I've tried using Easy Recovery Professional. It sort all the files by it file type into different folder. I found a folder named .DB, there are also some .ado and . ldb folder too. I guess one of it is my database. The problem now is, i dunno how to read the file.
Do you have any idea to read it? I've tried many recovery system. eg. DiskInternals Linux Recovery, Disk Doctor Linux Recovery.
I can't get access to a certain site. I always get the page with:
network time out - server at *** takes to long to respons. More people have noticed this and apparently it only happens to people with certain specific providers. And not all the time. Some times they DO get access eventy to they belong to the same ISP. So I guess an ISP isn't blocking access to it otherwise it would be permenantly/The site administrator insists that certain ISP's are blocking his site. He's hosting it on his own server. The domain belongs is registered at namecheap.com.
If an ISP is blocking this site (if that's possible?), that would lead to that 'network timeout' page wouldn't it?
What is the most likely reason for getting a timeout page anyway?
Windows Application 2003 crashed on RAID 5 server, we tried to take the NTFS files from the hardrive and mount them on a knobix which was booted from a cdrom drive. Knopix could read the files but it was unable to mount them I guess for compatiblity reasons.
Is there anyway we can get a backup of that ntfs file and restore our data?
I have a cpanel server and currently only have about 20 domain hosted, not bandwidth heavy. My dedi is Core2Duo E6550 with 8gb ram. How many domains i can host if all of my clients? How many is too many? I don't like to oversell just to get extra money?