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

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1answer
307 views

Restore snapshot from other aws account?

I am new in this, so forgive my beginner question. I have an aws account which is currently in us-west-2c. It has a instance running, and also a couple of volumes which i made. I have multiple backups ...
0
votes
1answer
70 views

AWS loopback approach and mounting an EBS Volume

In order to deploy your appliance on AWS, I think the loopback approach is true IaaS and I am not in favor of installing my software on an existing AMI. I see a potential problem of using loopback ...
0
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1answer
109 views

ebs durability clarification

I am confused as to the durability of the EBS volumes on AWS. As an example, volumes that operate with 20 GB or less of modified data since their most recent Amazon EBS snapshot can expect an ...
0
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3answers
580 views

Swap space in EC2 m1.small & m1.medium

I have a customized AMI, and when I launch instance from this AMI, if I choose m1.small, I will have a 895MB swap space; when I choose m1.medium, I will have 0 swap space, why is that? If I want my ...
-2
votes
1answer
49 views

Amazon EBS speed of volume-imaging hot vs offline?

Amazon permits you to image a hot volume -- one that is online and running. Does this come at a cost to image-speeds though? Will it image the volume substantially faster if you take the instance ...
0
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1answer
72 views

Disk Writes to Mounted EBS Volume Not Logged in Monitor

I have an EBS volume specifically dedicated to storing remote backups via rsync. This volume is attached and mounted to an EC2 instance. The user mediating backups has access to this volume via a ...
0
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1answer
281 views

expand the size of EBS volume in EC2 of AWS (Centos 6.3)

I have a Linux Centos instance with the following volume partitions: / - 5 GB /logs - /2 GB /data - 4 TB (4 volumes, each 1 TB). I would like to add more disk space (3 TB = 3 X 1TB volume) to my ...
0
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2answers
85 views

Some EBS devices have issues with ec2-attach-volume

While trying to attach a series of volumes to a set of devices, I have run into the following issue: Some of the devices get stuck in an "infinite" state of attachment. (I do not already have volumes ...
0
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2answers
407 views

EBS IOPS First Use Penalty with snapshot volumes

When creating a Provisioned IOPS EBS volume (or any EBS volumes for that matter) from a snapshot, are the "First Use Penalty” effects avoided? Are they only partially avoided (for the blocks that are ...
1
vote
1answer
315 views

Does taking EBS snapshots supposed to significantly slow down the performance of the EBS volume?

I'm trying to decide on the frequency of making snapshots. Is the AWS system designed in such a way that taking snapshots has a negligible effect on the performance of the volume, or can it ...
1
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2answers
839 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
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0answers
188 views

Replacing my ec2 root esb volume resulting in no SSH connectivity

I have 2 Amazon EC2 on demand instances running. Instance A - micro - Root Device = EBS backed Instance B - large - Root Device = EBS backed Both instance are accesible using SSH. Both instances ...
0
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2answers
68 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
113 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 ...
1
vote
3answers
362 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
92 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
117 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
172 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
28 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
vote
2answers
166 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
vote
1answer
895 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
320 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
votes
1answer
86 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
votes
1answer
111 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: ...
7
votes
1answer
5k 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
251 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
votes
1answer
71 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
votes
1answer
85 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
votes
1answer
81 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
178 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 ...
0
votes
2answers
1k 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
230 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
votes
1answer
81 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
votes
1answer
230 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
votes
1answer
84 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 ...
3
votes
2answers
4k 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 ...
-3
votes
2answers
78 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
vote
3answers
551 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 ...
3
votes
2answers
2k 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 ...
2
votes
3answers
2k 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 ...
1
vote
1answer
1k 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 ...
0
votes
1answer
887 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
votes
1answer
82 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.
3
votes
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
138 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 ...
16
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
93 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
966 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
vote
2answers
731 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
158 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 ...