On Sun StorEdge 3310, running Sun StorEdge Configuration Service (SSCS) in-band and sccli(1M) in-band at the same time may cause SCSI errors on servers. This can cause I/O issues and the server may require a reboot.

Note: SSCS is a graphical means of managing the SE3XXX family of products. sccli(1M) is the Command Line Interface (CLI) means of managing the same products.

This issue can occur on the following platform:

SPARC Platform

• Sun StorEdge 3310 SCSI Array without firmware 4.13b (as delivered in patch 113722-11)

with the following:

• Sun StorEdge Configuration Service (SSCS) and sccli(1M)

Note: SSCS, sccli(1M) and the glm(7D) driver are not Solaris version dependent.

This issue occurs when the following two conditions are met:

1. At least the following two daemons must be running on the monitoring server, verified by using the following command:

    $ ps -ef | grep ss
    root   370     1  0 08:08:21 ?        0:05 /usr/sbin/ssserver
    root   374     1  0 08:08:21 ?        0:36 /usr/sbin/ssmon

2. In-band operation has to have been selected for the GUI which can be verified using the following command:

    % grep "PRIAGENT_OVER_INBAND=" /var/opt/SUNWsscs/ssagent/ssagent.cfg
      PRIAGENT_OVER_INBAND=0

Note: 0 = in-band selected (default); 1 = out-of-band selected

Should the described issue occur, messages similar to the following will be logged to the "var/adm/messages" file:

    Oct 20 13:40:00 v4u-v240a glm: [ID 655122 kern.warning] WARNING: 
    ID[SUNWpd.check_intcode.6006]
    Oct 20 13:40:00 v4u-v240a scsi: [ID 107833 kern.warning] WARNING: 
    /pci@1c,600000/scsi@2,1 (glm1):
    Oct 20 13:40:00 v4u-v240a Resetting scsi bus, data overrun: got too 
    much data from target from (4,0)
    Oct 20 13:40:00 v4u-v240a genunix: [ID 408822 kern.info] NOTICE: 
    glm1: fault detected in device; service still available 
    Oct 20 13:40:00 v4u-v240a genunix: [ID 611667 kern.info] NOTICE: 
    glm1:Resetting scsi bus, data overrun: got too much data from 
    target from (4,0)
    Oct 20 13:40:00 v4u-v240a scsi: [ID 107833 kern.warning] WARNING: 
    /pci@1c,600000/scsi@2,1 (glm1):
    Oct 20 13:40:00 v4u-v240a Target 4 reducing sync. transfer rate
    Oct 20 13:40:00 v4u-v240a glm: [ID 923092 kern.warning] WARNING: 
    ID[SUNWpd.glm.sync_wide_backoff.6014]
    Oct 20 13:40:00 v4u-v240a scsi: [ID 107833 kern.warning] WARNING: 
    /pci@1c,600000/scsi@2,1 (glm1):
    Oct 20 13:40:00 v4u-v240a got SCSI bus reset
    Oct 20 13:40:00 v4u-v240a genunix: [ID 408822 kern.info] NOTICE: 
    glm1: fault detected in device; service still available
    Oct 20 13:40:00 v4u-v240a genunix: [ID 611667 kern.info] NOTICE: 
    glm1: got SCSI bus reset
    Oct 20 13:40:20 v4u-v240a glm: [ID 655122 kern.warning] WARNING: 
    ID[SUNWpd.check_intcode.6006]
    Oct 20 13:40:20 v4u-v240a scsi: [ID 107833 kern.warning] WARNING: 
    /pci@1c,600000/scsi@2,1 (glm1):
    Oct 20 13:40:20 v4u-v240a Resetting scsi bus, data overrun: got too 
    much data from target from (4,0)
    Oct 20 13:40:20 v4u-v240a genunix: [ID 408822 kern.info] NOTICE: 
    glm1: fault detected in device; service still available
    Oct 20 13:40:20 v4u-v240a genunix: [ID 611667 kern.info] NOTICE: 
    glm1: Resetting scsi bus, data overrun: got too much data from 
    target from (4,0)

To work around this issue, run either SCCS or sscli(1M) "out-of-band". The document "Sun StorEdge 3000 Family Configuration Service 1.5 User's Guide" part number 817-3337-12 page 103, chapter title: "To Use Out-of-Band Management," describes how to configure out-of-band management.

This issue is addressed on the following platform:

SPARC Platform

• Sun StorEdge 3310 SCSI Array with firmware 4.13b (as delivered in patch 113722-11 or later)

13-Sep-2005:

• Update Contributing Factors and Resolution sections

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