Sun StorEdge[TM] T3, T3+ and 6x20 Arrays: The Maximum Number of Concurrent TELNET and FTP sessions on the Sun StorEdge Arrays

Asset ID:	1-71-1003517.1
Update Date:	2010-10-05
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Solution Type Technical Instruction Sure

Solution 1003517.1 : Sun StorEdge[TM] T3, T3+ and 6x20 Arrays: The Maximum Number of Concurrent TELNET and FTP sessions on the Sun StorEdge Arrays

Related Items


Sun Storage T3 Array
 Sun Storage T3+ Array
 Sun Storage 6120 Array

Related Categories


GCS>Sun Microsystems>Storage - Disk>Modular Disk - 6xxx Arrays

PreviouslyPublishedAs
204944

Description
This document provides information about the maximum number of TELNET and
FTP sessions allowed concurrently on the following arrays:

Sun StorEdge[TM] T3
Sun StorEdge[TM] T3+
Sun StorEdge[TM] 6x20

Steps to Follow
For the following arrays, there can be 4 TELNET sessions and 10 FTP
sessions running concurrently at a particular time:

Sun StorEdge[TM] T3
Sun StorEdge[TM] T3+
Sun StorEdge[TM] 6x20

Once the limit is reached, the array will not allow subsequent TELNET or FTP
sessions until the earlier session is released.

Product
Sun StorageTek T3+/6X20 Controller Firmware 3.1
Sun StorageTek T3+ Array Controller FW 2.1
Sun StorageTek T3+ Array
Sun StorageTek T3 Multi-Platform 1.1
Sun StorageTek T3 Array
Sun StorageTek 6120 Array

Internal Comments
Currently, there is no convenient way to display connected sessions from
the array.

If hosts on the same physical network as the arrays are limited, one could
use netstat on each host that could have a connection to the array to
determine the number of existing sessions:

# netstat -f inet | egrep 't3i.(ftp|telnet)'
host1.58039 t3i.telnet 4096 0 49848 0 ESTABLISHED
host1.41841 t3i.telnet 4096 0 49704 0 ESTABLISHED
host1.41902 t3i.telnet 4096 0 49704 0 ESTABLISHED
host1.41939 t3i.ftp 4096 0 49848 0 ESTABLISHED

where "t3i" is the name or ip of the storage array

Alternatively, use snoop on a host on the same physical segment (as in on
the same "hub", not switch) as the array that monitors incoming network
traffic and looks for unique port numbers on TELNET or FTP. Unfortunately,
only active sessions can be traced.

Example:

# snoop t3i and port 20 or port 21 or port 23

or

# snoop t3i and port ftp or port ftp-data or port telnet

host1 -> t3i TELNET C port=41902
t3i -> host1 TELNET R port=41902 t3i:/:<2>
host1 -> t3i TELNET C port=41902
t3i -> host1 FTP R port=41950
host1 -> t3i FTP C port=41950
host1 -> t3i FTP C port=41950 PORT 129,158,137,68,
t3i -> host1 FTP R port=41950 200
host1 -> t3i FTP C port=41950
t3i -> host1 FTP R port=41950 PORT command success
host1 -> t3i FTP C port=41950 NLST\r\n
host1 -> t3i FTP-DATA C port=41991
t3i -> host1 FTP R port=41950 150
host1 -> t3i FTP-DATA C port=41991
host1 -> t3i FTP-DATA C port=41991
host1 -> t3i FTP C port=41950
t3i -> host1 FTP R port=41950 Opening ASCII mode d
host1 -> t3i FTP-DATA C port=41991
host1 -> t3i FTP C port=41950
host1 -> t3i TELNET C port=58039
t3i -> host1 TELNET R port=58039
host1 -> t3i TELNET C port=58039
t3i -> host1 TELNET R port=58039 t3i:/:<20>
host1 -> t3i TELNET C port=58039
host1 -> t3i TELNET C port=58039 l
t3i -> host1 TELNET R port=58039 l
host1 -> t3i TELNET C port=58039
host1 -> t3i TELNET C port=58039 s
t3i -> host1 TELNET R port=58039 s
host1 -> t3i TELNET C port=58039
host1 -> t3i TELNET C port=58039
t3i -> host1 TELNET R port=58039
host1 -> t3i TELNET C port=58039
t3i -> host1 TELNET R port=58039 BITMAP.SYS\tS318304_A
host1 -> t3i TELNET C port=58039
t3i -> host1 FTP R port=41950 F
host1 -> t3i FTP C port=41950
t3i -> host1 FTP R port=41950
host1 -> t3i FTP C port=41950

where "t3i" is the name or ip of the storage array

In this example, there are two active TELNET sessions and one active FTP
session.
T3, T3A, T3+, T3B, 6120, 6020, telnet, ftp
Previously Published As
77389

Change History
Date: 2006-01-23
User Name: 71396
Action: Update Canceled
Comment: *** Restored Published Content *** from ssh audit update
Version: 0
Date: 2006-01-23
User Name: 71396
Action: Update Started
Comment: updating per ssh audit
Version: 0
Date: 2004-07-15
User Name: c8840
Action: Approved
Comment: I edited this document and then submitted it for publication.
Version: 0
Date: 2004-07-15
User Name: c8840
Action: Accepted
Comment:
Version: 0
Date: 2004-07-13
User Name: 35753
Action: Approved
Comment: Moving to final review.
Version: 0
Date: 2004-07-13
User Name: 86700
Action: Approved
Comment: Thanks for adding that additional piece of information. I checked and it looks good. Please proceed to move it to the next stage if you find it appropriate.

Thanks once again,

-Sailesh
Version: 0
Date: 2004-07-12
User Name: 35753
Action: Rejected
Comment: Added some command example into Internal Only section that may be useful for field trying to trace the connections. Putting back to draft for author to decide if appropriate.
Version: 0
Date: 2004-07-12
User Name: 35753
Action: Accepted
Comment:
Version: 0
Date: 2004-07-12
User Name: 86700
Action: Add Comment
Comment: whoever accepts this document to review, could you please update the technology areas
to include, telnet, ftp, t3 arrays. I think i had selected the appropriate but it just selected the last one.

Thanks and regards,

-Sailesh
Version: 0
Date: 2004-07-12
User Name: 86700
Action: Approved
Comment: Please review this infodoc which is for the KGAP request 269.

Thanks and regards,

-Sailesh
Version: 0
Date: 2004-07-12
User Name: 86700
Action: Created
Comment:
Version: 0
Product_uuid
62772b5a-05c6-11d8-84cb-080020a9ed93|Sun StorageTek T3+/6X20 Controller Firmware 3.1
231f0a60-146b-11d7-8cdc-f4071bf80989|Sun StorageTek T3+ Array Controller FW 2.1
2a714b10-0a18-11d6-86e2-d56b387d4fbf|Sun StorageTek T3+ Array
bd277b78-24f2-11d7-98bd-a9b094d535c2|Sun StorageTek T3 Multi-Platform 1.1
2a6d7d50-0a18-11d6-8e0b-f0bd33b24928|Sun StorageTek T3 Array
2cd2e7d2-2980-11d7-9c3f-c506fe37b7ef|Sun StorageTek 6120 Array

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