topic Unable to get snapshots in REST api in Array Performance and Data Protection

Unable to get snapshots in REST api

dustinryan471711 — Fri, 21 Apr 2017 14:50:23 GMT

I have copied the powershell from the nimble examples. Everything is working, except snapshots. See error in the output at the bottom.

[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true}

###########################

# Get Token

###########################

$array = "10.2.25.50"

$username = "admin"

$password = "admin"

$data = @{

username = $username

password = $password

}

$body = convertto-json (@{ data = $data })

$uri = "https://" + $array + ":5392/v1/tokens"

$token = Invoke-RestMethod -Uri $uri -Method Post -Body $body

$token = $token.data.session_token

"Testing snapshot issue"

###########################

# Get snapshot List

###########################

">>snapshot"

$header = @{ "X-Auth-Token" = $token }

$uri = "https://" + $array + ":5392/v1/snapshots"

$snapshot_list = Invoke-RestMethod -Uri $uri -Method Get -Header $header

foreach ($snapshot_id in $snapshot_list.data.id){

$uri = "https://" + $array + ":5392/v1/snapshots" + $snapshot_id

$snapshot = Invoke-RestMethod -Uri $uri -Method Get -Header $header

">snapshot"

$snapshot.data

}

Testing snapshot issue

>>snapshot

Invoke-RestMethod : The remote server returned an error: (400) Bad Request.

At C:\Nimble\nimble_api_collector.ps1:39 char:18

+ ... apshot_list = Invoke-RestMethod -Uri $uri -Method Get -Header $header

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebException

+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand

Re: Unable to get snapshots in REST api

shill119 — Fri, 21 Apr 2017 16:24:01 GMT

Got this to work.

It takes the volume and gets snapshots based on the volume, then loops through the results.

"Testing snapshot issue"

###########################

# Get snapshot List

###########################

">>snapshot"

$header = @{ "X-Auth-Token" = $token }

$uri = "https://" + $array + ":5392/v1/volumes/"

$volume_list = Invoke-RestMethod -Uri $uri -Method Get -Header $header

foreach ($volume_id in $volume_list.data.id){

$uri = "https://" + $array + ":5392/v1/snapshots/detail?vol_id=" + $volume_id

$snapshot_list = Invoke-RestMethod -Uri $uri -Method Get -Header $header

foreach ($snapshot_id in $snapshot_list.data.id){

$uri = "https://" + $array + ":5392/v1/snapshots/" + $snapshot_id

$snapshot = Invoke-RestMethod -Uri $uri -Method Get -Header $header

">snapshot"

$snapshot.data

}

Re: Unable to get snapshots in REST api

jcates98 — Fri, 21 Apr 2017 17:23:23 GMT

It looks like Steve Hill beat me to the punch.

The snapshots API requires you to specify the volume for which you want to retrieve the snapshots. You cannot retrieve a list of all snapshots on the array in one fell swoop. As Steve's code shows, the way to pull all snapshots would be to iterate through each volume and retrieve that volume's snapshots.

To be fair, the examples were pulled together when the API was in beta and actually did allow for this. It looks like perhaps they haven't been updated. We'll get that fixed.

Re: Unable to get snapshots in REST api

dustinryan471711 — Fri, 21 Apr 2017 18:03:46 GMT

Thanks Julian

Sent from my iPhone