Tag Archives | xen

Linode: After 319 Days of Uptime

If there is one VPS provider that I really like and use it’s Linode (ref link). In my opinion they are not over hyped or overrated, they do what they do best: offer quality VPS, have multiple locations, nifty features (such as load balancing) and most importantly the best (and quickest) support.

Recently Linode started a wave of upgrades:

  1. 20% increase in storage (December 2012)
  2. Network upgrade that included upgrading the transfer allowance (March 2013)
  3. Host node upgrades running newer Intel Xeon E5-2670 CPUs + 8 cores per VPS (March 2013)
  4. RAM doubled on all plans (April 2013)

After reading about the RAM upgrade and simply had to get my VPS running with all of the above (out of the above my VPS I was only taking advantage of the network upgrade). I made the difficult decision to sacrifice my 319 days of uptime icon sad Linode: After 319 Days of Uptime



linodeuptime Linode: After 319 Days of Uptime

I started off with the disk upgrade which took my VPS offline for a few minutes while I resized the HDD and restarted the Linode. Then I decided to go through the migration to the new host nodes running the newer processors (aka 8 cores + double RAM).

15 minutes later, my VPS is safely back up, running on new hardware, with more RAM, disk space and bandwidth icon biggrin Linode: After 319 Days of Uptime !

I wonder what else Linode have under their sleeves…?

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Linode’s Clairvoyant Support Team

I swear Linode's (shameless referral linking :-p) support team have a crystal ball or something on their desks! So a couple of days ago my VPS at Linode was going up and down then down for a few minutes. I decided to send in a ticket wondering if there was some issue going on. Just have a look at the timestamps:

linodescary Linodes Clairvoyant Support Team

Yes, that is a reply to my question 7 SECONDS after I opened the ticket! You don't even find canned responses that quick! Oh and my Linode VPS was back up and running when I got the reply. So not only was it a response, it was also a resolution!

One of many reasons I recommend Linode if you are ever looking for a VERY reliable VPS (they use Xen).

This is not the first time I write about them: here is a review I wrote about them and another about their uptime. I wonder if they're better than Rackspace's Fanatical Support? Wouldn't be surprised, they definitely beat Liquid Web's Heroic Support!

 

 

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Linode’s 9th Birthday Giveaway!

Linode (to me, the best VPS provider in the solar system) is going to be celebrating its 9th birthday on the 19th of June with a super giveaway! Yes, this is a party where you don't need to bring any presents, but get presents from the birthday boy (or company) themselves.

The giveaway is for all, new and existing customers and it is quite simple. According to their blog post if you are a new customer, signup for one of their amazing Xen VPS and you'll get $100 in credit. For existing customers it is even better icon wink Linodes 9th Birthday Giveaway! , add any VPS (aka Linode) or a NodeBalancer and you can get 3 months of service free! So it is possible to get a Linode 2048 (worth $79.95) for free during August, September and October!

Are there any catches? Yes of course. The party (giveaway) starts on Tuesday after 4 PM GMT (16:00 or 1340121600 in epoch) and there is $250,000 worth of services to be given away (live countdown on their home page). The good news is that you will know immediately if you are in or out through the "black box" on the signup page that will be updated in real time with the amount left.

So go ahead, give Linode a try for your hosting needs.

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Linode’s Impressive Uptime

It has been more or less 6 months since I've moved this blog to a Linode VPS (512MB Xen in London) and I must say that I am quite impressed with its performance, uptime and most importantly support. Here is a breakdown of the uptime since I started (using Pingdom, checking every minute):

November 2011: 100%
December 2011: 99.99%
January 2012: 99.98%
February 2012: 100%
March 2012: 99.91% (migration downtime, read about it below)
April 2012: 100%

March had the worst uptime and this was due to a configuration I made that required a reboot (less than a minute down) and a migration of my Linode to another node (within the same DC).

The Linode migration process is quite simple. I basically received an email that said that the node I am currently on requires maintenance and there would be a scheduled migration in a week. Then you either have 2 options: wait for the migration or start it yourself. I opted for option 2. I logged in to the Linode manager and the big green box they use for important stuff explained the upcoming migration with the option to start it. A few clicks later the process started. They provide you with details of everything from shutdown to boot on the new node:

Shutdown: 14 seconds
Initial configuration: 1 second
Migrating disk: 9 minutes 59 seconds
Migrating swap: 9 seconds
Cleanup: 2 seconds
Boot: 24 seconds
Done! Total time: 10 minutes and 49 seconds

The VPS came up with no problems, the IP addresses remained the same (since this was within the same DC) and I even turned on IPv6 since it requires rebooting the VPS.

Linode may be expensive compared to other VPS providers ( starting from $19.95), but in my opinion they are worth it, and I recommend them if you need to host something that deserves excellent performance and uptime.

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A Detailed Linode Review

It's been just over 2 months since I have been using Linode's VPS (Virtual Private Server) services. I decided to give them a try to see what the hype was all about. The closest I've ever gotten to use Linode was reading the many tutorials they have in the Linode Library. Before them, I was using BurstNET for hosting my blog (a review here). Burst and Linode offer similar services but for different markets. Firstly, price wise, Burst is budget at $5.95 vs Linode's $19.95 for similar specs in disk (20GB) and memory (512MB). Linode however, use Xen and not OpenVZ like Burst, therefore you get only guaranteed memory while Burst allows you to burst (too many "bursts" now :-S) to 1GB. Bandwidth is also much less between them (Linode 200GB vs BurstNET 1000GB). Summing up: Linode is more of a premium, unmanaged VPS provider.

So, where does the money to your premium VPS go in Linode?

The VPS panel is simply amazing! They use their own in house panel where you can customize the VPS as much as you want before setup. You can, for example, not use the whole disk allocation, setup different swap sizes, change kernels, the list goes on!

You can use something called "StackScripts" to deploy your VPS with the OS, software installed, configured etc… in one click. There are many (added up to 210) StackScripts, by Linode and users' contributions.

Your bandwidth is pooled, rather than offered as an individual allotment to each VPS. Let's say you have 5 of the lowest VPS which offers 200GB each. The total bandwidth you can use across all your VPSes is 1000GB, so you can have 1 using 900GB and the rest the remaining 100GB or any combination within your limit.

Then you have locations. You can deploy your VPS in any of the six locations they offer. Since it is a one-click operation, you pay for a slot in any location. During the VPS setup you select the deployment location and voila, you have a VPS in that location. As a result, they offer a page that shows in (real time?) the availability of each data center. Oh and they have Japan as a location as well icon wink A Detailed Linode Review . More goodies here!

Customer support is simply superb. Whenever I had problems I would wait maximum 5 minutes to get a reply. I wouldn't be surprised that is where most of the fee you pay goes to. Granted the issues I had were checking up on the status of a certain location, I'm not sure how long it would take if the problem I faced was much more serious.

Service wise, the first month was really bad icon sad A Detailed Linode Review . The problems were mostly network issues in the DC I deployed my Linode in. Even worst, it was isolated to only the section where the node was hosted. I had problems from the 24th of November until the 7th of December (that was the last reply I sent them acknowledging problem solved). They associated the problem I faced to bad luck, and it seems they were right. My VPS is now at 65 days of uptime icon biggrin A Detailed Linode Review !

What is the network speed like?

From my London based Linode, here are wgets from downloading Linode's test files (100MB each):

London Linode –> London (within the same network): 34.3 MB/s

London Linode –> New Jersey: 1.63 MB/s

London Linode –> California: 1.13 MB/s

London Linode –> Tokyo: 721 KB/s

Now for network tests from one of my many VPSes to my London Linode (100MB test file):

New Jersey –> London Linode: 501 KB/s

France –> London Linode: 5.08 MB/s

Illinois –> London Linode: 2.55 MB/s

Florida –> London Linode: 3.60 MB/s

California –> London Linode: 2.24 MB/s

For some reason network performance isn't the best amongst other providers I have used, however I have nothing that requires serving files in high speed.

What about disk performance and processor?

hdparm -tT /dev/xvda
Timing cached reads:   9396 MB in  1.99 seconds = 4714.37 MB/sec
Timing buffered disk reads: 376 MB in  3.00 seconds = 125.13 MB/sec

 

dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 13.0345 s, 82.4 MB/s
 
cat /proc/cpuinfo
Intel(R) Xeon(R) CPU  L5520  @ 2.27GHz
 
The verdict?
 
Overall performance great, customer service excellent, customization abilities excellent but network a bit on the poor side.

 

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