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Questions tagged [amazon-ebs]

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

1
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1answer
344 views

Amazong EBS showing unreal disk usage

I have an EBS of 8 GB and when I've checked my free space it says I'm using almost all of it: Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7.8G 7.2G 185M 98% / proc ...
0
votes
1answer
783 views

Host multiple ssl domains in amazon Ec2 instance

I need to install multiple ssl domains in my amazon ec2 instance.Amazon ec2 allows only one IP address so I decided to use load-balancers for each domains. Scenario : I host 4 domains in an ec2 ...
0
votes
1answer
225 views

Can i have 400 snapshots in Amazon Ec2 if they are incremental only

I want to know about snapshotting. Amazon says that they make Incremental backups Only charge for the data chnaged between snapshots Now my question is let us suppose the only data which change is ...
-1
votes
1answer
462 views

What is AVG I/O request for normal EC2 Instnace with web server on Amazon AWS

I have Amazon Ec2 instance with EBS Volume. Standard EBS Volumes are billed $0.10 per 1 million I/O requests Now I am not able to guess how much is the normal I/O request for normal server. and in ...
3
votes
2answers
1k views

Server Backup Strategy for Amazon EC2

Where and how should I backup my EC2 / EBS based snapshots OUTSIDE of EC2? EC2 provides a great product with their EBS based snapshots. However it is also a high risk point that someone could ...
1
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2answers
3k views

Amazon Ec2 Linux still shows old Volume size even after increasing

Initially i had EBS boot as AMI image with 10GB EBS volume. Then i created new 20Gb EBS volume and then attached that to old instance and booted Then i see that i still have 10GB mounted as /dev/...
1
vote
0answers
243 views

Safe filesystem encryption using mdadm and cryptsetup in EC2

I need to safely store some encrypted information in EC2. For this purpose, I'd like to encrypt a filesystem on my EBS drives to ensure that third-parties won't be able to poke around in my data. ...
1
vote
1answer
849 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
179 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 ...
1
vote
1answer
246 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
votes
3answers
796 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
76 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
votes
1answer
103 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
votes
1answer
481 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
votes
2answers
349 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 ...
1
vote
2answers
943 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
1k 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 ...
2
votes
2answers
2k 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
99 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
142 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 ...
5
votes
3answers
2k 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
vote
0answers
180 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
votes
1answer
149 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
vote
0answers
186 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
42 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
268 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 ...
4
votes
1answer
4k 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% /...
-2
votes
1answer
794 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
220 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
163 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: /dev/sda1=snap-xxxxxx:8:...
14
votes
1answer
18k 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
546 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
90 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
108 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
96 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
401 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
vote
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
votes
3answers
304 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
123 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
456 views

Installing 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
104 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
8k 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 ...
-4
votes
2answers
219 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
835 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 ...
6
votes
3answers
6k 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 ...
9
votes
3answers
9k 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 ...
4
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 ...
2
votes
1answer
2k 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
139 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
votes
2answers
3k 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 ...