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Learn AWS > AWS Storage GW > Flashcards

AWS Storage GW Flashcards

1
Q

What is the AWS Storage GW?

A

It is primarily an on-prem virtual appliance device that acts as a gateway for s3 storage. It bridges traditional on-prem interfaces such as NFS, SMB, ISCSI volume and ISCSI tape with AWS S3 and Glacier.

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2
Q

What are the platforms Storage GW requires to run?

A

VMWare
HyperV
AWS instance (VM)

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3
Q

Is Storage GW good for On-Prem DR?

A

Yes you can use as a DR solution to keep data backed up.

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4
Q

What functions does Storage GW provide?

A

File Gateway for NFS and SMB
Volume Gateway stored mode, iscsi and async to s3
Volume Gateway Cache mode, primary data is on s3
Tape gateway virtual media gateway

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5
Q

I have some remote office with limited bandwidth and I wnat to provide this office with iscsi access to data, what options do i have?

A

Use Storage GW caches mode.

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6
Q

What are the storage interfaces provided for the Storage GW?

A
  • VTL -> Glacier
  • ISCSI (Cached) -> S3 standard and IA : Async
  • ISCSI -> Snapshot (Backed up) to S3
  • FileShare - S3
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7
Q

What protocols can the storage GW for file share support?

A
  • SMB

- NFS

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8
Q

What protocol does Tape Gateway (VTL) support?

A
  • ISCSI
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9
Q

What protocol does the Volume Gateway (ISCSI)? support

A
  • ISCSI
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10
Q

What are the Storage Gateways 3 types?

A
  • File Gateway
  • Volume Gateway
  • -Cached GW
  • -Block gateway
  • Tape Gateway
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11
Q

I have a set of tape drives that I currently use with ISCSI backup software, I wnat to modernise it, what can I use?

A

Replace the Tapes with Storage GW Tape GW. This will with existing ISCSI software and provide remote backup to Glacier.

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12
Q

When using the File GW, is the a 1:1 mapping of files, so I can see the files in S3?

A

Yes.

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13
Q

What is stored volume GW?

A

This is the volume gateway and is where you have all the volume capacity in the Storage GW on-prem and snapshots to s3.

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14
Q

What is cached volume?

A

This is the volume gateway, it is where the storage GW only stores some of the dat on-prem and reached out to s3 to get the rest.

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15
Q

Where is Tape Gateway stored in S3?

A

It is stored as a virtual tape shelf in glacier

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16
Q

For Tape Gateway, is it stored in S3 standard?

A

No, stored as a virtual tape shelf in glacier

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17
Q

How fast is it to get data back form Tape Gateway?

A

Slow, it is coming from a VTL in Glacier.

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18
Q

For a VTL what is the max size?

A

None, unlimited for the TVL but there is a 40 TB archive limit.

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19
Q

To do you ready your storage for storing in the VTL?

A

You create a ZIP a TAR.

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20
Q

I need hot storage, is VTL good for this?

A

No, TVL is archive storage, where data is stored in Glacier.

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21
Q

I wnat to get notified with VTL jobs get

A

There is an option on the Glacier storage in the VTL to get an SNS notification when jobs are complete.

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22
Q

Using a storage gateway, what is the Tape Storage interface?

A

It is an ISCSI tape interface, a traditional replacement for tape drives.

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23
Q

With regard to Storage Gateway, select the correct type of storage for long term archival where I was traditionally using ISCSI Tape?

A

Tape gateway.

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24
Q

I wnat to archive data to S3 and be able to access the S3 files from EBS directly, how cna I do this, what is the correct Storage Gateway storage and why?

A

File Gateway, File Gateway enables you to store data to S3 so you can access the files. This type of storage is NFS type files storage on the appliance side.

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25
Q

For File Gateway what protocols are available?

A

SMB and NFS

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26
Q

What type of storage is the File Gateway?

A

It is a network attached storage

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27
Q

When using the File Gateway, how are objects stored to S3?

A

As an individual objects

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28
Q

When using the File Gateway, are files altered or archived before storing to S3?

A

No, files are untouched and you can directly access the files from S3.

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29
Q

I am using Tape Gateway, how can I receive a file, is it possible to directly access the files on S3?

A

It is not possible to access the file directly on S3, you have to retrieve the archive form the vault, unzip or untar the archive to get access to the file.

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30
Q

I have an analytics application thet stores files to be analyzed, I would like an easy way to run SQL queries ove these files, the format is in PARQUE, today I store the files on-prem, I wnat to lower the cost of storage. How can I achieve this?

A

You can use the file gateway to store the files form on-prem to S3. And then use Athena to query the files as you are access to the exact files untouched and the file sare already in PARQUE format.

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31
Q

I have on-prem files thet I need to have a DR plan for, the org policy requires that I have at least 3 regional copies of the data, how cna I do this?

A

You can use a file gateway to push the data to S3 and use regional replication to create regional copies of the data. You can also use life cycle policies to archive the data to glacier.

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32
Q

For storage gateway what hypervisors are supported?

A
  • Hyper-V
  • VMware
  • EX2
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33
Q

Is files gateway a cache or hot copy of your data?

A

It is a cached copy.

34
Q

What is the max number of bucket shares a file gateway can provide?

A

File gateway provide up to 10 bucket shares.

35
Q

When using File Gateway can I only write to S3 standard?

A

No, you can write to,

  • S3 standard
  • S3 IA
  • S3 One zone
36
Q

For File Gateway, where are file permissions stored?

A 
There are two sets of permissions, AWS IAM S3 permissions and the permissions related to the files system. In this case, we are talking about folder and file permissions, folder and file permissions are stores by file gateway in the S3 metadata. File permission from S3 metadata,
"Metadata": {
"file-group": "500",
"user-agent-id": "sgw-7619FB1F",
"file-owner": "500",
"aws-sgw":
"57c3c3e92a7781f868cb10020b33aa6b2859d58c868190661bcceae87f7b96f1",
"file-mtime": "1489618141421",
"file-ctime": "1489618141421",
"user-agent": "aws-storage-gateway",
"file-permissions": "0664"
}
37
Q

How does File Gateway work for reads, explain?

A

File gateway is a cashed network file system, over SMB and NFS. When a on-prem PC/Server request bytes from the File Gateway, the FG will check if these bytes are stored locally in the cache, if they are they are returned and if not present locally, the FG will request the byte form S3 by doing a get with a range.

38
Q

How does File Gateway work for writes, explain?

A

The File Gateway receives a written form a local PPC/server. The FG write it locally and then the FG async write to S3. It there are multiple writes to the FG, all write locally and batches sent to the S3

39
Q

For File Gateway can you define the size of the cache?

A

Yes

40
Q

Can you use AD with File Gateway to control permissions?

A

Tes AD is supported.

41
Q

I wnat to scale the reads for my File Gateway on-prem, how cna I do this?

A

File Gateway supports the sharing of one S3 bucket with multiple FGs, but as there is no locking in S3, these other FG’s need to be read-only.

42
Q

Can you use life cycle policies with File Gateway?

A

Yes, there are supported and can be used for FG, your data to FG is always instantly available.

43
Q

What happens when you try to read a file thet has been migrated to Glacier using lofe cycle policies?

A

You get a read error, you have the then restore the file from Glacier to S3 before it can be read by the FG.

44
Q

I am using on prem-file storage and running out of storage space, what options fo I have?

A

You cna use FG to tier the storage and provide a way to have storage offloaded to lower-cost S3.

45
Q

I require the ability to backup file on my on-prem, we use NFS and SNB, what are my options?

A

Use FG as it supports NFS and SMB and provides a way to backup files to S3.

46
Q

I want to store files to S3 so that I have access to the files from S3, how cna I do this?

A

Set up AWS Storage GW - File GW, this has a one to one mapping of files and you can access the files from S3.

47
Q

My on-prem is using ISCSI and I wnat to have data backed up to S3, how cna I do this?

A

ISCSI mean you need Storage GW - Volumes GW, and you have two options, cached and backups.
- Cached

48
Q

When using Storage GW cached volumes, where is the primary storage?

A

Primary storage is in S3 with an only cached copy of the data local.

49
Q

When using Storage GW cached volumes, can I store a much larger volume of data then available locally?

A

Yes, this is because the primary storage is in S3 with only data thet is needed pulled local to the storage GW.

50
Q

What is the name of the storage thet is the block, ISCSI and where the data is always local?

A

Storage GW - Block storage.

51
Q

What is the name of the product thet is hybrid cloud storage?

A

Hybrid cloud storage is when we have both storage on-prem and in the cloud, AWS has storage GW as a product, it covers,

  • Volume GW - Cached and also block
  • File GW
  • Tape GW
52
Q

My application is using SMB and NFS, I want to backup storage to an off-site location, what options do I have?

A

You cna use Store GW - File GQW and it stores files to S3, files in S3 are accessible.

53
Q

When using File GW, are all the data files locally?

A

No, only the most recent file are stored locally in the local cache.

54
Q

What are the two models for Volume GW?

A
  • Cached mode, where data is cached locally with primary onnS3
  • Stored mode, where data is stored locally and backed up to S3.
55
Q

For Volume GW, how is data backed up?

A

Point in time snapshots and stored on S3

56
Q

My org requires encryption in transit and rest, how dose storage GW encrypt data at rest and transit?

A
  • Storage GW encrypts data between S3 and Storage GW using SSL. Local in-transit my not be encrypted, like ISCSI protocol.
  • Data stored in S3 is by default encrypted, SSE.
  • You cna optionally encrypt data in the storage GW using KMS.
57
Q

Can I use storage GW that require HIPPA?

A

Yes, Storage GW is HIPPA compliant.

58
Q

I require a local iSCSI storage that will back up to s3 and is PCI compliant, what can I use?

A

Storage GW is PCI compliant

59
Q

Is storage GW PCI compliant?

A

Yes, it is PCI compliant.

60
Q

What AWS Storage Gateway types can I manage through AWS Backup?

A

You can manage backup and retention policies for cached and stored volume modes of Volume Gateway through AWS Backup.

61
Q

I wnat to deploy storage GW on-prem in the non-routable network (no internet access), how can I do this?

A

You can use DirectConnect and endpoint (PrivateLink), this way you are able to route traffic over 100% private network. The Storage GW accesses the S3 services through the endpoint (PrivateLink).

62
Q

When using storage GW, is it only tape GW I used for backups?

A

No, you can use,

  • Tape GW
  • File GW
  • and if you wnat you volumes backed up the can be a point in time taken and will be stored in S3.
63
Q

For permission at the files system level with regard to File GW, where are thet stored and configured?

A

The files system-level permission are stored as metadata in S3 automatically, you update them as you would normally through the file system.

64
Q

Dise File gateway support AD?

A

Yes, 100%.

65
Q

I already have objects in a bucket when I share through the File GW, what will happen?

A

Objects get presented through the File GW and get default file system permissions.

66
Q

Can I have multiple writers to File GW files?

A

No, like any NFS you cna not write from many clients at the same time.

67
Q

Can you monitor the File GW?

A

CloudWatch logs for file GW system information

Cloudwatch for metric information.

68
Q

Can you do cross-account bucket access form the File GW?

A

Yes

69
Q

What is the max number of file shares for the File GW?

A

10

70
Q

Can I use File GW with EFS, FSX?

A

No, data is stored in S3

71
Q

Why is data cached locally on the File GW and Volume GW?

A

To provide low latency.

72
Q

For Tape GW, how is the data stored?

A

Stored to S3 while data is been wrote by application and then moved to Glacier or deep storage once the table is ejected (finished archiving).

73
Q

What is the min and mac for a virtual tape?

A

100GiB and 5 TiB and 1500 tapes (1PB).

74
Q

How many volumes can I support with Volume GW?

A

32

75
Q

Should I use storge GW for databases?

A

No, it an anti-pattern. EBS storage is a better selection here.

76
Q

Is disaster recover a use case for storage GW?

A

Yes 100%, disaster recover is 100% a use case for store GW. You can take backups with the Tape GW, you can have ongoing cached file system where the primary is on S3 for file GW. You cna have cached volumes for volume GW whee the data is primary on S3 for cached volumes and for stored volumes you cna have snapshot backups to S3.

77
Q

For Volume GW, how do I access the data stored on S3?

A

You can, you have to take a snapshot and snapshots are stored as ENs volumes.

78
Q

How are Volume GW snapshots stored?

A

As EBS snapshots

79
Q

For volume GW in-store mode, how is data synced?

A

Data is primarily local and asynced to S3.

80
Q

Can I deploy storage GW to EC2?

A

Yes, 100%, you can create a Storage GW appliance and run it on EC2.

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