This is for questions on Amazon's storage service for its ec2 service.

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2answers
1k views

Simple EC2 offline backup?

Scenario: A frustrated employee deletes all data from an AWS account. Valuable data: EBS volume of an EC2 machine based on Amazon's Linux AMI. What is a simple offline backup solution for the data? ...
0
votes
2answers
75 views

Mount Amazon Volume?

I have a probably stupid question: why do my volumes not show up when I run "mount" (on Amazon) : I would expect my 3 volumes (/dev/xvda1; /dev/xvdf ; /dev/xcdg) to show up here and only the root ...
0
votes
1answer
123 views

Solutions for a growing Postgresql database on Amazon EC2?

I've been doing a lot of research into scaling issues on Amazon EC2, especially growing databases. I looked into how I can make the database more solid and sound (I use PostgreSQL). Many sources say ...
2
votes
3answers
677 views

Will my EC2 Spot Instance Volumes Die with the Instance?

Consider my high-CPU spot instance with five drives. Drive c: is the boot drive. Drive d: is an additional volume that I created and manually attached to the instance. Volumes e:, f:, g:, and h: are ...
1
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0answers
146 views

How can I store the Postgresql data on the EBS Volumes and not on the Root Volume?

My PostgreSQL database is currently stored in the cloud. Normally, when creating a PostgreSQL database, all the data is stored on the root volume of the EC2 instance. How can I make sure all the ...
0
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1answer
124 views

How does data storage on Amazon EC2 work especially for databases?

I've been playing around with Amazon's Web Services for over a year now, however I don't quite understand how it works. When I for example select an AMI of my choice from the EC2 console and I ...
1
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0answers
175 views

market place EBS volume as secondary device

I managed to lock myself out on AWS marketplace centos 6.3 server. It seems to be a permission issue (SELinux) and needs some reconfiguration. I was going to mount the root drive of the problematic ...
0
votes
1answer
32 views

Possible to attach to an Amazon EBS volume from a third-party server?

I have been seeking an answer with no luck: Can I attach and mount an Amazon EBS instance on a third-party server (i.e. NOT an Amazon cloud server)? (Assume a linux-based system) Just wondering if ...
1
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2answers
186 views

EC2 How To Boot from an EBS-backed AMI (ubuntu) as root device

After doing research, I have found there are many advantages to boot from an EBS-backed AMI rather than instance storage. I have a few questions related to this: What is the optimal size for an ...
1
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1answer
1k views

df shows disk full but ncdu shows only 1.5gb of 8gb used

I am confused. Our EC2 instance is showing that the disk is 98% full. The output from df -Th shows: Filesystem Type Size Used Avail Use% Mounted on /dev/xvda1 ext4 7.9G 7.7G 172M 98% ...
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votes
1answer
504 views

Which is better - AWS S3 or EBS? [closed]

I am trying to create a system where users can upload their data (audio, text) which can run into around 200 MB per user. I am trying to figure out what is the best way to go ahead - using S3 or EBS. ...
0
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1answer
116 views

EC2 Volume “In use” but no attachment information

I have an EBS volume that is showing as "In Use" in the console, but the attachment field is blank. ec2-describe-volumes shows the same information, while ec2-describe-volume-status throws an ...
0
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1answer
132 views

Empty /mnt: store-backed instance launch from EBS-backed AMI

I have an EBS AMI which I want to publish in AWS Market Place. The AMI was created with data in /mnt. The snapshop includes both /dev/sda1 and /dev/sdb devices : Block Devices: ...
9
votes
1answer
9k views

Where's my ephemeral storage for EC2 Instance

I have looked through the following questions, notably How to use "Instance Store Volumes" storage in Amazon EC2? However, it didn't answer. I created a EC2 small instance with EBS as the ...
2
votes
1answer
352 views

Amazon EC2 - Create private AMI from snapshot

I'm having a really hard time. This is where I am. I have created an EC2 instance, installed my configs and taken a snapshot. I now want to turn this snapshot into an AMI that I can start new ...
0
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1answer
77 views

Terminate EC2 instance and not root EBS (Attached root EBS to new instance)

I have created an instance running ubuntu os. Now I need to change the OS from ubuntu to cent OS. For that I need set the "deleteOn Termination" flag as false to attach it to the new instance. I used ...
0
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1answer
92 views

Sharing 80Gb of data between ec2 instances

Morning, I have an Amazon ec2 linux instance, with a separate EBS drive, 500Gb in size of which there is 80Gb of data. I want to share this data with a couple of other ec2 instances that I will be ...
0
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1answer
88 views

Need to rebuild array from EBS volumes on AWS

I shutdown a bunch of instances on our AWS account as we're no longer developing for a product. After shutting down everything, before hitting the delete button on the EBS volumes, we decided we would ...
0
votes
1answer
249 views

How exactly does one store SQL Server on an attached EBS volume? EC2

I have an EBS backed EC2 instance, I've heard it's good to store your SQL on another attached EBS volume for "sustain many more random IOPS than instance disks (good for typical workloads) and ...
1
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2answers
2k views

Amazon EC2 EBS Backed Do I need to worry about backup strategy at all?

If I enable termination prevention, do I need to have a backup strategy in place at all? I have Windows /w SQL Server on a ROOT backed EBS EC2. I can NEVER lose my server configuration or database ...
0
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2answers
259 views

Which EBS drive attached to my Amazon EC2 instance contains root volume?

I have an Amazon EC2 instance that has two EBS drives associated with it: an 8 GB drive at /dev/sda1, and a 20 GB drive at /dev/sdf. I didn't set this up so I'm not sure why this instance needs two ...
0
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1answer
104 views

How can I add Amazon EBS drive to instance with two EBS drives already?

Per this excellent answer, I'm trying to disconnect an EBS drive from one instance (Server-01) and connect it to another instance (Server-02), where I will mount it and get access to a file I need. ...
0
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1answer
264 views

insalling glusterfs client on Amazon Linux AMI

I created glusterfs instances using Ubuntu TLS AMI. I want my existing instances (Amazon Linux AMI) connect to glusterfs servers. There is no Amazon Linux folder at the glusterfs's download page: ...
0
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1answer
86 views

defining EBS volume size to use with glusterfs

I'm trying to build a glusterfs network file system on Amazon EC2. I trying to define EBS Volume size. I'm planning to use 2 x 12Gb volumes at the begining stage and then add extra volumes in the ...
4
votes
2answers
5k views

installing glusterfs on amazon ec2

My drupal website running on Amazon EC2 cloud. My instances use S3 storage for dynamic files. But I realized that S3 is too slow and it may cause problems. I want to use glusterfs instead of S3. To ...
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votes
2answers
88 views

Discover ec2 usernames for public ami [closed]

Is there a way to discover or specify the username I need to use to ssh in to an ec2 instance? I know how to select my key pair, but depending on the ami, you need to use a different username. For ...
1
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3answers
664 views

Can I create a RAID array over EBS volumes without using mdadm?

I'm new to Linux device management, and filesystems generally, so the answer to this question might be "No, of course not. What were you thinking?" or "Yes, of course. Isn't it obvious?" All the same ...
4
votes
2answers
3k views

Find current IOPS usage of EBS volume from my application on AWS EC2

I am relatively new to AWS and disk performance. I am trying to figure out how much provisioned IOPS does my application need to perform well. Currently My PHP and MySQL application is hosted on EC2 ...
4
votes
3answers
3k views

how do I find out what part of my ec2 storage is ephemeral

This may be a silly question, excuse my ignorance. I have an instance running like this: Does Root Device : EBS mean my entire system is on EBS? I've configured apache and a perl app here, all my ...
2
votes
1answer
2k views

What are the differences between availability zones for Amazon EC2 in US east?

Are there any known differences between the different US East availability zones? I've noticed 1e is new on the list. Does that mean that the underlying hardware is newer and the EC2 instances ...
1
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1answer
1k views

What will happen to my EBS data when autoscaling my EC2 instance?

I have various websites hosted on 1 same single EC2 instance so far. In the root EBS volume of such instance I have: Codes and files of the websites which change every hour if not every minute Apache ...
0
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1answer
89 views

Ephemeral Amazon disc mounted in /tmp

I would like to know what do you think about mounting the ephemeral disc in /tmp when using Ubuntu in AWS.
4
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2answers
2k views

Upload Files to Amazon AWS

I am new to Amazon AWS and fairly new to Web hosting in general. I previously used Bluehost for web hosting, but my company is switching to AWS. I'm wondering what the best practices are for uploading ...
0
votes
1answer
164 views

EC2 Reserved Instances - Currently have micro what to do now?

I have been running with 2 micro on demand instances. I now want to convert one of the servers to a small instance. I have purchased a Windows small reserved instance in us-east-1b and it is now ...
17
votes
2answers
2k views

Which AWS features are EBS backed?

I recently read an article AWS: The good, the bad and ugly, which mentioned that they've moved off of all EBS backed AWS features. What features are explicity (EBS backed EC2 instances) or implicitly ...
2
votes
1answer
104 views

When I mount an XFS snapshot that was frozen, do I need to unfreeze it?

I'm snapshotting an XFS EBS volume, freezing it first. When I mount the snapshot as a new volume on a different instance will I need to unfreeze the volume before it can be used, or will it not be ...
2
votes
1answer
1k views

Do EC2 EBS provisioned iops volumes set an iops cap, not just a minimum?

I've been testing AWS EC2 with EBS optimized instances using EBS provisioned IOPS volumes in the hopes of finding out just how much better they perform in reality. I'm confused by the results and was ...
1
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2answers
828 views

Problems migrating an EBS backed instance over AWS Regions

Note: I asked this question on the EC2 forums too but haven't received any love there. Hopefully the ServerFault community will be more awesome. The new AWS Sydney region opening up is something that ...
1
vote
2answers
235 views

How to update an EBS AMI's snapshot?

I have an AMI that I use for my rails web servers. This AMI using an EBS Snapshot to launch with the basics all ready for production. I now need to update some configuration settings on web servers ...
-1
votes
2answers
259 views

How to load balance when database and application running on same instance in Amazon EC2

I have the situation where I am running my application and Postgresql database on same Ec2 instance. Data of Postgresql gets saved on another EBS Volume different from the Root volume of the instance. ...
4
votes
3answers
3k views

Auto-Attach EBS-volume to a New Spot Instance?

I am experimenting with EC2 spot instances, and am needing some data to be retained between terminations. Now as I understand it, when the current price goes above my max. bid, it will be ...
0
votes
1answer
59 views

Database modularity with EBS volumes

I would like to add modularity to my websites on EC2 instances by encapsulating the site files and the mysql files in their own EBS volumes. The end result that I'm going for is the ability to quickly ...
-3
votes
1answer
172 views

Amazon EC2 - Does the 160GB drive charges for IOPS? [closed]

If I buy a Standard Small EC2 instance, it comes with a 160GB. But does this 160GB drive is an EBS drive? Or simply storage for the OS... And also am I charged for the IOPS on that 160GB drive?
0
votes
1answer
494 views

How to upgrade a single instance's size without downtime

I'm afraid there may not be a way to do this since we're not load balancing, but I'd like to know if there is any way to upgrade an EC2 EBS backed instance to a larger size without downtime. First of ...
1
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0answers
78 views

Storage (EBS) attached to my EC2 instance reporting files on two devices at once

I have on EC2 instance with two attached EBS drives. One drive /dev/sda1 is mounted on / The second /dev/sda2 is mounted on /var2 So here's what's strange. Whenever I add any files to /var2 the it ...
2
votes
1answer
687 views

Creating an AMI from an EC2 instance with mounted volumes

I have an EBS-backed instance with a 2nd mounted volume (I followed the steps in Eric's Article) I then created an AMI from that instance, and ran an instance from that AMI. That 2nd instance then ...
0
votes
1answer
371 views

How does AWS Provisioned IOPS EBS volumes compare to dedicated disk [closed]

In the past, no one can answer the performance difference as they are not well documented. Now AWS offer Provisioned IOPS EBS volumes Let say you now you buy 1000 IOPS, how does this value compare ...
2
votes
4answers
7k views

Command does not execute in crontab while command itself works just fine

I have this script from Colin Johnson on Github - https://github.com/colinbjohnson/aws-missing-tools/tree/master/ec2-automate-backup It seems great. I have modified it to send email to myself every ...
0
votes
1answer
92 views

Installing Windows Server 2012 Preview on an Amazon EC2 instance

Is there any way of doing a clean install on an Amazon EC2 instance. I have the bootable installation media stored in an EBS volume. How can I boot from that volume? And do I have to use an automated ...
1
vote
1answer
694 views

Need a recommendation for shared storage on auto-scaling ec2 w/ scalr

I have come across so many answers to this question that I am completely lost! I am moving our 2 sites to a load balanced ec2 system with scalr as our cloud manager. Now the question is coming up ...