March 20, 2014
Peter Murray | Senior Product Specialist
Protocols for Dummies
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Announcements – Webinar Schedule
April 24
– v3.6 Product Release
Learn all the latest and greatest product feature in the newest product release!
May 15
– Flash Testing
How to best validate Flash storage performance including de-dup and compressions
June 19
– Workload Modeling
Review of workloads including VDIJuly 17
– How to Win the Storage
Bake-Off
Stories from the trenches
Aug 21
– Storage Protocols for Dummies
Part 2
We have lots of information to cover
Speaker
Peter Murray
Senior Product Specialist
Peter Murray is an expert with more than 25 years of experience in storage and network testing. Prior to joining Load DynamiX in 2009, Peter worked with
leading vendors including F5 Networks and Spirent Communications, and was
extensively involved with the architecture and design of networked testing products and customer engagements.
CIFS/SMB:
Windows XP
Enter Server IP
address
TCP Destination Port
445
Use LM 0.12 Dialect
Remaining are historical
Unicode Strings = True
Domain Name:
WORKGROUP for
server login
Full domain name for domain-based login
Some vendors require
Machine Name
Authentication required
May use one username and password for all users
Domain-based login to be addressed in a future Webinar
Use Virtual Circuit 1
Format is
\\<server>\share
Windows ignores all characters between \\ and \ except some clustered
implementations
Used for creating, opening or deleting a directory
Path is directory name
Literal is used here
Create Disposition:
Typically use Open if Exists, Create
otherwise (See next slide)
Create Options:
Flag as Directory=True
creates or opens the directory
Hint Delete-On-Close
deletes the directory when closed
Open if Exists, Create
otherwise – If it’s there, use it.
If not, create it
Supercede if exists, Create
otherwise – If it’s there, erase
the content and start over. If new, create it
Open if exists, fail otherwise
– use when you expect a file or directory to be present.
Otherwise, fail the open
Disposition:
How to Create/Open Directory or File
Fail if exists, Create otherwise
– fail the open if the file already exists, create otherwise
Overwrite if exists, Fail
otherwise – If it’s there, write
over existing content. If not, fail the Open
Overwrite if exists, create
otherwise – If there, write over
Used for creating,
opening or deleting a file Path is file name
User parameter reference shown here
Create Options:
None usually required
Hint Delete-On-Close
deletes a file when closed
Create Disposition:
Typically use Open if Exists, Create
otherwise.
Automatic Offset True
enables long file writes Note:
Bytes per Block
must be less than 65535Avoids splitting a request in two due to SMB
padding
Bytes Total defines total
write
E.g. Block size 65500 and Bytes Total 655,000 results in 10 Read
requests on the wire Block Sequence writes blocks forward,
backwards or randomly within Total Bytes
File/share/session handle configuration is occasionally
required for File Close, Tree
Disconnect or Session Logoff Only needed if
multiple files, shares, or sessions
commands opened in one Scenario
SMB2:
Windows 7
Enter Server IP address TCP Destination Port 445
Dialects: SMB2.002: SMB2 SMB 2.1: SMB2.1 SMB 2.24 Beta SMB3 SMB 3.0: RTM SMB3 Capabilities:
All are optional
Used with SMB 2.1 and SMB3
SMB 2.0 capabilities:
Distributed File System
Domain Name:
WORKGROUP for
server login
Full domain name for domain-based login
Some vendors require
Machine Name
Authentication required
May use one username and password for all users
Domain-based login to be addressed in a future Webinar
Windows 7 settings Hex: E2088217 Copy NTLM Flags value from PCAP (either hex as
shown above or decimal) and paste directly in
drop-down pane at top of NTLM Flags rather than setting flags individually
Format is
\\<server>\share
Windows ignores all characters between \\ and \ except some clustered
implementations
Used for creating, opening or deleting a directory
Path is directory name
Literal is used here
Create Disposition:
Typically use Open if Exists, Create
otherwise
Create Options:
Flag as Directory=True
creates or opens the directory
Hint Delete-On-Close
deletes the directory when closed
Used for creating,
opening or deleting a file Path is file name
User parameter reference shown here
Create Disposition: Typically use Open if
Exists, Create otherwise
Create Options:
None usually required
Hint Delete-On-Close
deletes a file when closed
Automatic Offset True
enables long file writes Note:
Bytes per Block
must be less than 65535Avoids splitting a request in two due to SMB
padding
Bytes Total defines total
write
E.g. Block size 65500 and Bytes Total 655,000 results in 10 Read
requests on the wire Block Sequence writes blocks forward,
backwards or randomly within Total Bytes
File/share/session
handle configuration is occasionally required for File Close, Tree
Disconnect or Session Logoff
Only needed if multiple files, shares, or sessions commands opened in one Scenario
SMB2.1/SMB3 Hybrid:
Windows 8, 8.1
Enter Server IP
address
TCP Destination Port
445
Required dialects:
SMB2.002: SMB2 SMB 2.1: SMB2.1 SMB 3.0: RTM SMB3
Capabilities:
All are optional
Used with SMB 2.1 and SMB3
SMB 2.1 capabilities:
Distributed File System Leasing
Large MTU (Multi-Credit)
SMB 3.0 capabilities:
Persistent Handles Directory Leasing Encryption
Domain Name:
WORKGROUP for
server login
Full domain name for domain-based login
Some vendors require
Machine Name
Authentication required
May use one username and password for all users
Domain-based login to be addressed in a future Webinar
Windows 8 settings
Hex: E2088297
Copy NTLM Flags value from PCAP (either hex as
shown above or
decimal) and paste directly in
drop-down pane at top of NTLM Flags PCAP rather than setting flags individually
Format is \\<server>\share Windows ignores all characters between \\ and \ except some clustered implementations
Tree Connect
Verifies that a client has connected to a real
SMB3 server
Helps prevent Man in the Middle attacks Revalidates the Capabilities first
specified in Negotiate
Determines if multiple
interfaces are available on server
If present, may be one or more: Ethernet interfaces 10G Ethernet iWARP (RDMA) interfaces Infiniband RDMA interfaces
Other interfaces may be shared
iWARP and Infiniband interfaces enable
high-speed large data transfers
Share/session handle configuration is
occasionally required for Tree Disconnect or Session Logoff
Only needed if multiple files, shares, or
sessions commands opened in one Scenario Advanced copy using SMB3 will be a topic in a future Webinar
More to Come
Future “Protocol for Dummies”
webinars will address:
NFSv3, NFSv4 and NFSv4.1 Fibrechannel
iSCSI
Many advanced topics:
Writing / Reading with complex content types Working with metadata
Compound vs. Async command config and processing
And more! Please stay tuned…
Thank you!
(408) 477- 8910
