Have you had a file copy fail? Does that drive you crazy or what? How about when it is a REALLY big file and it takes a couple of hours and JUUUUUST before it finishes something happens to interrupt the transfer and you have to start all over again. Does that make you want to shove a sharpened #2 pencil up your nose or what?<\/p>\n
I got to thinking about these things when I saw that the W7 and WS08\/R2 beta bits were available and that the demand was so high that the servers were having a hard time keeping up. Can you image how you would react if you downloaded a GB and then the transfer failed? Can\u2019t someone HELP? Can\u2019t someone give us the get semantics of Windows Update but for files that **I** care about? <\/p>\n
Funny you should mention that.<\/p>\n
Have I mentioned that PowerShell V2 rocks? In CTP3, we are exposing a new set of Cmdlets that give you access to BITS<\/a>. BITS stands for Background Intelligent Transfer Service. BITS is an awesome service. It is the special sauce behind Windows Update. Have you ever gone to WU and seen a couple hundred MB service pack and wondered, \u201chow is every PC on the planet going to get a couple hundred MB without causing the Internet to melt?\u201d Well BITS is the answer to that question. We think everyone should be using BITS. That means both ISV products and end users. Whenever you use BITS you get a better experience. You get reliable transfers, adaptive network bandwidth usage to minimize the impact on your system and you get peer caching which minimizes traffic. You can learn more about BITS by downloading a document HERE<\/a>.<\/p>\n BTW – It turns out that we have been shipping the ability to do this for quite a while through a WIN32 command called BITSADMIN<\/a> but few know about it and it is difficult to use. We think we still have usability issues with these Cmdlets so we might change them before we ship.<\/p>\n [0]PS> # You need to import the FileTransfer Module to get BITS cmdlets <\/font><\/p>\n <\/font><\/p>\n [3]PS> # This is the HTTP file that I want to download. I could have<\/font> [6]PS> # This creates a new BITS job running in the background. After JobId DisplayName TransferType JobState OwnerAccount <\/font><\/p>\n <\/font><\/p>\n [12]PS> $job = Get-FileTransfer PSAMD<\/strong> <\/font><\/p>\n [13]PS> # Let’s take a look at what we have JobId : 5652f872-c8db-4423-a28f-70c10e1600f4 <\/font><\/p>\n <\/font><\/p>\n [15]PS> # Notice that you don’t see anything until the job is complete [18]PS> dir c:\\Kits\\power* <\/strong><\/font><\/p>\n [19]PS> # The transfer is smart about bandwidth utilization and will<\/font> JobId DisplayName TransferType JobState OwnerAccount [26]PS> $job <\/font><\/p>\n JobId DisplayName TransferType JobState OwnerAccount <\/font><\/p>\n <\/font><\/p>\n <\/font><\/p>\n [27]PS> # This is how you resume the FileTransfer.<\/font> JobId DisplayName TransferType JobState OwnerAccount [29]PS> $job<\/strong> <\/font><\/p>\n JobId DisplayName TransferType JobState OwnerAccount <\/font><\/p>\n <\/font><\/p>\n [30]PS> # When the job is complete, you have to use this command to [33]PS> dir c:\\Kits\\power*<\/strong> <\/font><\/p>\n Directory: C:\\Kits <\/font><\/p>\n Mode LastWriteTime Length Name <\/font><\/p>\n Everyone should use BITS.<\/p>\n Experiment, Enjoy, Engage.<\/p>\n Jeffrey Snover [MSFT] Have you had a file copy fail? Does that drive you crazy or what? How about when it is a REALLY big file and it takes a couple of hours and JUUUUUST before it finishes something happens to interrupt the transfer and you have to start all over again. Does that make you want to […]<\/p>\n","protected":false},"author":600,"featured_media":13641,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[110,137,210,270],"class_list":["post-4711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-powershell","tag-bits","tag-ctp3","tag-jeffrey-snover","tag-powershell-v2"],"acf":[],"blog_post_summary":" Have you had a file copy fail? Does that drive you crazy or what? How about when it is a REALLY big file and it takes a couple of hours and JUUUUUST before it finishes something happens to interrupt the transfer and you have to start all over again. Does that make you want to […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/posts\/4711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/users\/600"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/comments?post=4711"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/posts\/4711\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/media\/13641"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/media?parent=4711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/categories?post=4711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/powershell\/wp-json\/wp\/v2\/tags?post=4711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<\/font>[1]PS> # Notice that the NOUN is FileTransfer
<\/font>[2]PS> Import-Module FileTransfer -Verbose
<\/strong>VERBOSE: Importing cmdlet ‘Add-FileTransfer’<\/font>.
VERBOSE: Importing cmdlet ‘Clear-FileTransfer’<\/font>.
VERBOSE: Importing cmdlet ‘Complete-FileTransfer’<\/font>.
VERBOSE: Importing cmdlet ‘Get-FileTransfer’<\/font>.
VERBOSE: Importing cmdlet ‘New-FileTransfer’<\/font>.
VERBOSE: Importing cmdlet ‘Resume-FileTransfer’<\/font>.
VERBOSE: Importing cmdlet ‘Set-FileTransfer’<\/font>.
VERBOSE: Importing cmdlet <\/font>‘Suspend-FileTransfer’<\/font>. <\/font><\/font><\/p>\n
[4]PS> # also used an UNC Path<\/font>
[5]PS> $file = “<\/strong><\/font>http:\/\/download.microsoft.com\/download\/D\/0\/E\/D0E6D2C1-2593-401<\/font><\/a>
7-B26D-7375BC9263D5\/PowerShell_Setup_amd64.msi” <\/strong><\/font><\/p>\n
<\/font>[7]PS> # this command the file will get transferred even if
<\/font>[8]PS> # this process terminates
<\/font>[9]PS> # this machine (or the server) reboots.
<\/font>[10]PS> # the network goes down and comes back up.
<\/font>[11]PS> New-FileTransfer -ServerFileName $file -ClientFileNamePrefix c:\\Kits –
DisplayName PSAMD -Asynchronous <\/strong><\/font><\/p>\n
—– ———– ———— ——– ————
5652f872-c8d… PSAMD Download Connecting RugratsVist… <\/font><\/p>\n
<\/font>[14]PS> $job |format-list * <\/strong><\/font><\/p>\n
DisplayName : PSAMD
Description : This is a transfer using Background Intelligent Tra
nsfer Service.
TransferType : Download
JobState : Transferring
OwnerAccount : RugratsVista\\jsnover
Priority : Normal
MinimumRetryDelay : 600
NoProgressTimeout : 1209600
TransientErrorCount : 0
ProxyUsage : SystemDefault
ErrorContext : None
ErrorCondition : NoError
InternalErrorCode : 0
ErrorDescription :
ErrorContextDescription :
BytesTotal : 10313216
BytesTransferred : 1063897
<\/font>FilesTotal : 1
FilesTransferred : 0
CreationTime : 1\/11\/2009 9:03:06 AM
ModificationTime : 1\/11\/2009 9:03:11 AM
TransferCompletionTime : 1\/1\/0001 12:00:00 AM
FileList : {<\/font>http:\/\/download.microsoft.com\/download\/D\/0\/E\/D0E6D<\/font><\/a>
2C1-2593-4017-B26D-7375BC9263D5\/PowerShell_Setup_am
d64.msi}
ProxyList :
ProxyBypassList : <\/font><\/p>\n
<\/font>[16]PS> # Actually, in -Asynchronous mode, you want see anything
<\/font>[17]PS> # until *YOU* complete the FileTransfer (with a Complete-FileTransfer) <\/font><\/font><\/p>\n
[20]PS> # scale back when it detects interactive use or competition for<\/font>
[21]PS> # the network. You can control this with the -Priority flag<\/font>
[22]PS> # which takes values:<\/font>
[23]PS> # Forground, High, Normal, Low<\/strong><\/font>
[24]PS> # You can also manually suspend the job for any reason<\/font>
[25]PS> Suspend-FileTransfer $job <\/strong><\/font><\/p>\n
—– ———– ———— ——– ————
5652f872-c8d… PSAMD Download Suspended RugratsVist… <\/font><\/p>\n
—– ———– ———— ——– ————
5652f872-c8d… PSAMD Download Suspended<\/font> RugratsVist… <\/font><\/p>\n
[28]PS> Resume-FileTransfer $job -Asynchronous<\/strong> <\/font><\/p>\n
—– ———– ———— ——– ————
5652f872-c8d… PSAMD Download Connecting<\/font> RugratsVist… <\/font><\/p>\n
—– ———– ———— ——– ————
5652f872-c8d… PSAMD Download Transferred<\/font> RugratsVist… <\/font><\/p>\n
<\/font>[31]PS> # make the files show up and to clean up the job<\/font>
[32]PS> Complete-FileTransfer $job<\/strong> <\/font><\/p>\n
—- ————- —— —-
-a— 12\/15\/2008 5:08 AM 10313216 PowerShell_Setup_amd64.msi <\/font><\/p>\n
Windows Management Partner Architect
Visit the Windows PowerShell Team blog at: http:\/\/blogs.msdn.com\/PowerShell<\/a>
Visit the Windows PowerShell ScriptCenter at: http:\/\/www.microsoft.com\/technet\/scriptcenter\/hubs\/msh.mspx<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"