28. Block Volume - Oracle Cloud Infrastructure Foundations - video Dailymotion

Psycho Killer

Watch 28. Block Volume - Oracle Cloud Infrastructure Foundations - Psycho Killer on Dailymotion

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00:00welcome back let's look at OCI block volume service at the very core the block volume service

00:12provides persistent and durable storage to compute instances as you can see on this graphic here

00:18there's a compute instance which is talking to disks persistent and durable disks which are

00:25sitting on a network server so the core idea here is to get the persistent and durable storage what

00:33does that actually mean well if you look at the the same picture again your compute instance talking

00:38to a to a block storage disk you can create and attach these disks to the compute instances you

00:45can detach and delete the disks and most importantly you can keep the data even after you delete the

00:52instance so the data is stored independently of the instance life cycle and that is the number one

01:00reason why you would use a block volume service to provide that persistent and durable storage persistent

01:06meaning it's a safe storage uh it's it stays beyond the life cycle of the compute instances itself

01:12compute instance gets terminated is still safe and durable means we we make multiple copies so even

01:18if we lose one copy we have other copies of the data available in the data center let's look at the

01:22block volume tiers we start with a tier which is called lower cost this is good for large sequential

01:28io workloads like streaming data warehousing then you have a balanced tier which is a balanced choice

01:34for random io things like your boot disks then we have a higher performance tier which is for the most

01:40uh io demanding workloads and then we have uh ultra high performance uh tier which is for the highest

01:48io demanding workloads so things like your relational databases and you can see the characteristics

01:53down below starting with two iops per gig going all the way to 225 iops per gig and then we also have

02:01this feature which which is called auto-tune performance and what it does it changes the volume

02:07performance to lower cost when the volume is detached when the volume is reattached the volume

02:12performance is automatically adjusted to the previous setting why would you do it well it helps you save

02:18on the cost so with block volumes or data in general you want the data to be safely stored so we have

02:24encryption turned on by by default you cannot turn this off and we we you can bring your own keys and

02:30we also have encryption uh for data at rest and we also have encryption in transit meaning when your

02:36virtual machine is talking to the block storage service the traffic is encrypted in transit between

02:42the virtual machine and the block service uh block service also has this feature called read write

02:47shareable where a single disk can be shared with multiple vms uh and these vms can read and write

02:55uh to the single block volume we also have this capability of resizing block volumes and what this

03:02means is you could do online resizing or offline resizing with online resizing you can expand the

03:08volume size without detaching the volume from an instance so it keeps your applications up and running

03:13and you can still change the size of your block volumes we also have a feature which is called

03:19replication of block volumes and as you can see in this feature in this graphic here uh the the block

03:24volumes are being replicated from one region to the another region why would you do that you would do

03:30that for disaster recovery you would do it for migration or if you are uh expanding your business

03:35you would leverage this feature uh the idea here is to replicate the data to multiple regions

03:40uh and keep in mind this replication is asynchronous and then finally we have this feature called volume

03:47groups uh block volume service provides you with the capability to group together multiple volumes

03:52in what we call as a volume group this simplifies the process to create time consistent backups of running

03:59applications that span multiple volumes across multiple instances and the idea here is then you can once you

04:05create a volume group you can restore an entire group of volumes from a volume group backup so folks

04:12that's that's it that's block volume thanks for watching

04:14you

28. Block Volume - Oracle Cloud Infrastructure Foundations

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