May 2, 2019 Vignesh Sathiyanantham

Failure rate depends more on the number of disk blocks modified since the last snapshot of the EBS volume than the total size of the volume. EBS has a listed failure rate of 0.1% – 0.4% annually, compared to a commodity disk’s rate of 4%. At first glance, this appears to be great, but this is somewhat misleading as any real production setup will use some sort of RAID. Using a RAID 1 with two drives failing at 4% would give a failure rate of 0.16% annually, which appears to be line with EBS. As long as the failed drive…

December 14, 2018 Vignesh Sathiyanantham

Like every computer needs harddisk VM or Cloud Instances are no exception. In Amazon, EBS is the virtual hard disk for your EC2 instances, it stores data as blocks and it is like a traditional file system you can format it with any file system and use EBS is not a stand-alone storage, you cannot use EBS volumes like S3 and unlike VMware Virtual Disks you cannot share the EBS between instances at the same time. Until 2012 Amazon had a single type EBS volumes The magnetic standard volume then they had another two more types ( General Purpose SSD and…

October 31, 2017 Vignesh Sathiyanantham

[amazon_link asins=’8126565780,B007X6SMD6,B01FGT7J3K,B007Q4XQEU,B01LX8J2S9,B01MG5IPDO,B01FSZHYSW’ template=’ProductCarousel’ store=’asvignesh-21′ marketplace=’IN’ link_id=’c40293c0-c0bb-11e7-9231-5decb318ea19′]   First stop the AWS EC2 Instance Create the EBS snapshot of the volume which you want to encrypt Copy the EBS snapshot which you created in the previous step to same availability zone and check the Encryption check box Create the new EBS volume from the encrypted EBS snapshot Now the newly created EBS volume is Encrypted Detach the root volume and attach the new Encrypted volume with the same device name ( /dev/sda1 )