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

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123 views

Trouble creating ext4 filesystem when trying to mount EBS volume on AWS instance

I'm trying to mount an EBS volume on my AWS instance. Following Amazon's instructions, I get the following error when running sudo mkfs -t ext4 /dev/xvdf: Allocating group tables: done ...
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1answer
223 views

Packer with amazon-ebs VS amazon-instance

I am looking into using Packer to generate some of our VMs, and I have been working thorough the example here. When I try to run the packer build command I get the following error: ==> amazon-ebs: ...
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52 views

EC2 websites & RDS databases backup

We have some Amazon EC2 machines on which different websites are working, and their database is being pulled from RDS-MySQL, I know for machine I can have images as backup and for RDP-MySQL it has ...
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1answer
89 views

EC2 volumes & partitioning

With Amazon EC2 CentOS 7 HVM community image machine just thinking for volumes & partitioning. Would it not be good that I create default 8GB volume sda for root device for all operating system ...
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174 views

CentOS 7 mount ebs thorugh systemd unit

CentOS 7 HVM community image is not mounting the drive if as recommended we do it via rc.local(since doing it via /etc/fstab entry may halt the machine and make it not reachable if any issue occurs in ...
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1answer
193 views

EBS volume mount point should be disk or partition

With community CentOS 7 HVM image, after adding another EBS volume to my EC2 instance, lsblk command shows this NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 8G 0 disk -xvda1 ...
2
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1answer
313 views

Is there anything I can do to speed up snapshot speeds?

I have 3 SSD EBS volumes mounted to my database server. The main data volume is 10TB, the journal volume is 1TB, and a 3rd volume is 100GB. When I take a snapshot of the 3 volumes, the 1TB journal ...
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0answers
144 views

attached volume of a FreeBSD amazon ec2 instance does not show up

I have followed the steps in the documentation, created a new EBS volume and attached it to the instance (I only have one). I rebooted and tried shutdown/start, but the device does not show up inside ...
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0answers
216 views

Change the root EBS device of AWS EC2 instance

I changed the root device of my AWS ec2 instance and now I can't log in, I get: Permission denied (publickey) The new ebs I changed to was also a bootable volume. Then I created another instance ...
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1answer
49 views

Attach a volume and set internal IP on boot

I have an Ubuntu 14.04 based NFS server AMI wrapped with a Launch Configuration and an Auto Scaling Group of just a single instance (min/max/req). This is just to make sure that if the server goes ...
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1answer
320 views

ephemeral storage of Amazon EC2 instance

I have created new ec2 (m3-large) instance on Amazon with root partition 80GB.But mnt partition it automatically mounted with 30 GB. Will the ephemeral storage be charged ?
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1answer
485 views

Launch new EC2 instance with a specified EBS volume attached

I would like to launch an EC2 instance using the python boto library, with a previously created EBS volume attached (in addition to the root volume). After connecting, I look up the volume by its ...
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2answers
66 views

ec2 instance showing garbled name root ebs duplicate

I'm following the introduction instructions here: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EC2_GetStarted.html When I add an EBS volume, I see something garbled when checking on the EC2 ...
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2answers
6k views

How can I set up an SFTP server backed by S3 (or similar)

I need to set up an SFTP server that, essentially, has very large capacity. I need to give one of our partners SFTP login details to a server where they will upload millions of files, totalling a few ...
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1answer
227 views

EBS vs Instance Local storage for MongoDB in ec2

Cassandra recommends using instance local storage for EC2 deployments instead of EBS I am deploying MongoDB in EC2... should I also be using instance local storage instead of EBS PIOPS?
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166 views

How to tell if disk volume is instance store or EBS?

I have a number of volumes (same size) attached to a Windows instance in Amazon AWS. One of them is told to be an instance store. How do I tell which one? PS. testing the speed did not help, one of ...
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1answer
35 views

EC2 Linux mapping between file system and EBS volumes

Where are "observable" paths like /home/ubuntu/foo.txt stored on a Linux EC2 instance with mounted EBS? I have a basic EC2 instance with added EBS storage, mounted as /mnt/my-data following one of ...
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2answers
2k views

How to reduce AWS EBS root volume size?

Enlarging an EC2 instance is easy like a breath (for instance, create an AMI, launch an instance from it and then change the storage size). But reducing it becomes more difficult. I’d like to reduce ...
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0answers
103 views

AWS volume from snapshot missing data

This is a weird one. On a new ec2 instance + new data volume attached at /dev/xvdb mounted with: mkfs -t ext4 /dev/xvdb mkdir /mnt/xvdb mount -t ext4 /dev/xvdb /mnt/xvdb I take a snapshot of ...
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1answer
1k views

Disk root error on start instance on “Amazon Web Services (AWS)” EC2

I "Detach Volume" and "Attach Volume" again. After that I want "Instance Start" but I get immediately message Error starting instances Invalid value 'i-{id}' for instanceId. Instance does ...
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1answer
97 views

How to Mounting RAID0 EBS Volumes after reboot on EC2?

I've already attached two volumes to my EC2 instance and configured RAID0 for them. After a reboot, the volumes didn't re-attach. I thought I had configured them to attach on reboot in fstab but they ...
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1answer
212 views

Amazon EC2: Not able to login(RDP) to Instance after migrating root ebs volume.

I am trying to access my windows instance but I am unable to login (RDP) into it. What I have done is I have taken up a snapshot of a root EBS volume and attached that to newly launched instance. The ...
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1answer
139 views

AWS - EC2 unable to detect EBS drives

after an unexpected restart on a windows server 2021 r2 server, the server is unable to detect the EBS drives. i have attached about 4 drives but they are invisible/not detected in device manager/disk ...
2
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1answer
871 views

Amazon EC2 - Not able to find / mount EBS volume partition

I have a linux instance to which a ebs volumne of 20GB has been attached. The web-console volume page shows: 20 GiB gp2 snap-b3a87xyz in-use i-cd5b9999 (myinstance):/dev/sda1 (attached) The ...
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1answer
1k views

What is the size of an IO Operation (IOP) in AWS EBS?

My research suggests that both the standard and the maximum (kernel limitations) block size for modern file systems (ext4, xfs) is 4KB. However, AWS allows IO operations as large as 256KB and says ...
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1answer
597 views

Can't create/write to file '/mnt/temp/something' (Errcode: 13)

I changed the tmp directory of the mysql configuration to a mounted disk and on service mysql restart I get following error: Can't create/write to file '/mnt/temp/something' (Errcode: 13) To my ...
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1answer
33 views

Amazon snapshot issue

This Question has 2 parts: 1) What snapshots can be safely removed, do I need to retain the ones from which a running instance was launched? 2) How are snapshots appearing from a shut down instance? ...
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1answer
53 views

Availability Zone for Elastic Block Storage

If the Availability Zone for an Elastic Block Storage (EBS) volume is us-east-1c, can I mount it on an instance in us-east-1a? If not, what is the best way to migrate the volume?
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1answer
117 views

How to figure out which EC2 instance an EBS Volume went with?

I discovered a few unattached, mystery EBS volumes in my AWS Console. I suspect these are leftovers from some test EC2 instances I had that I may have not noticed were NOT set to delete the volume ...
3
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1answer
1k views

Booting an EC2 instance from an existing EBS volvume

I'm just getting up to speed on AWS and had a question about using an existing EBS volume as a boot device for an EC2 instance. It looks like a lot of the instances create an EBS volume for their ...
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2answers
243 views

Is it possible to attach an Amazon RDS SSD volume to an EC2 instance?

It has been my understanding that you cannot attach an Amazon RDS SSD volume to an EC2 instance. I was under the impression that the RDS instances were a "managed" solution and that the volume was not ...
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0answers
251 views

AWS: Sync WWW folder between multiple load balanced instances

I am new to AWS. I am trying to setup an EC2 web server. I got the server up and running, I made the AMI (which included the WWW folder), added the load balancer etc. I terminated the original ...
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2answers
862 views

crontab fails, cannot find aws executable

I am trying to run a backup script on my ec2 amazon server (ubuntu 14.04), to automatically create a snapshot of amazon ebs volumes. Therefore I am using the aws-missing-tools script: ...
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1answer
307 views

How can I create redundant EC2 instances when also using EBS?

I am searching for a host for a web application that must interact with a few terabytes worth of files. One solution I'm considering is to host the application on Amazon EC2 with multiple EBS ...
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1answer
3k views

Will a SSD storage perform like a magnetic for small root volumes in AWS EC2?

I have a t1.micro instance with 8GB of magnetic EBS volume as it's root disk with a LAMP environment on it. I thought that I will upgrade it to t2.micro with 8GB of General Purpose SSD volume. ...
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1answer
326 views

Windows EBS Volume from snapshot at instance launch is OFFLINE

Using Powershell launching a Server 2012 R2 machine. I can launch an instance from the stock Server 2012R2 AMI with a defined new EBS volume for d: drive, and upon boot, is online, and works fine. ...
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1answer
71 views

AWS EC2 - Will I maintain SSH access launching an instance from an EBS-backed AMI?

I'm using an Ubuntu machine with Amazon's EC2 service. I've taken an EBS-backed AMI of this computer. If my current instance shuts down, when I launch an instance from the saved AMI, will I ...
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1answer
300 views

Setup of high-end web server and DB server cluster on Amazon EC2: Is this how it's done?

EC2, Amazon's Elastic Compute Cloud virtual machine service, has many configuration options. So, I want to confirm that this configuration is correct for a scalable database and web server backend. ...
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1answer
323 views

What happens when I delete the first of several AWS EBS snapshots?

On http://aws.amazon.com/ebs/pricing/ it says: "EBS Snapshots [...] For the first snapshot of a volume, Amazon EBS saves a full copy of your data to Amazon S3. For each incremental snapshot, only ...
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2answers
296 views

How to select snapshot for root EBS volume

I have a custom AMI, with a corresponding EBS snapshot, made some time earlier. Recently, I have decided to create a newer EBS snapshot to reflect some software updates. Then I wanted to submit a spot ...
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2answers
104 views

Do several EBS drives really improve overall disk throughput?

On m3.xlarge instance (EBS Optimized – True) : There are two EBS disks: /mnt/data0, /mnt/data1 Single dd: dd bs=1M count=1024 if=/dev/zero of=/mnt/data0/test conv=fdatasync 1024+0 records in ...
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1answer
276 views

AWS give Apache permission to write to different EBS volume

I have an EC2 instance that is running Apache and my website (php files) is also on that EC2 instance. Website users will be able to upload and download files and I would like to store (user uploaded) ...
0
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1answer
105 views

Backing up an EC2 EBS Windows volume offline

I would like to backup offline a Windows EC2 EBS Volume, i.e. on my computer and not in the cloud. Note I can stop the instance and detach the EBS volume if needed. Is it at all possible with Amazon's ...
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2answers
117 views

Can I use ZFS to replicate (fast) EC2 instance store to (slow) EBS store?

I love the idea of using SSD EBS instance stores as L2ARC and ZIL for a zpool backed by EBS. Going further (and into more dangerous territory), could I instead create a zpool mirror with the 2 ...
0
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1answer
328 views

The disk that shows up on AWS EC2 instance - where is it coming from (among the AWS EBS volumes)?

I have a running AWS EC2 instance (Ubuntu 12.04.4 LTS). When I ssh into that instance and do a 'df -h', I see the following: Filesystem Size Used Avail Use% Mounted on /dev/xvda1 99G ...
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1answer
305 views

No primordial pool in 2012R2 on AWS with EBS disks

I'm trying to experiment with storage pools on Amazon's new 2012R2 AMI. I've created several EBS volumes and attached them to the instance. In the Server Manager I brought them online and ...
1
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1answer
614 views

Backup Mongodb on EC2 through EBS snapshots - timing issue

I'm following this guidance http://docs.mongodb.org/ecosystem/tutorial/backup-and-restore-mongodb-on-amazon-ec2/ I have 4 EBS 1000 IOPS volumes assigned to instance These 4 volumes through MDADM ...
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1answer
214 views

Selecting an EBS Volume as Root for EC2 instance

When launching an EC2 instance you have the option to select storage for your system but it seems to automatically choose a root volume for you. Is there a way to choose a root volume from among your ...
2
votes
2answers
702 views

Monitor AWS EC2 volume capacity

I have a EC2 Ubuntu server instance with a 15GB volume, running a web service. The web service is logging to date-formatted files which are pruned after 7 days. The load on the server is still low, ...
0
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1answer
237 views

Convert Windows Amazon Instance-backed AMI to EBS

I've come across plenty of how-to's for this that deal with Linux (and back in 2010 when not all tools were available on the EC2 web interface) but none that deal with Windows (that work). I've tried ...