Sun Storage 3510 FC Array
 
Sun Storage 3511 SATA Array
 

GCS>Sun Microsystems>Sun Alert>Criteria Category>Availability
 
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When a Sun StorEdge 3510 or 3511 array (with firmware 3.2x or later) is connected using a series LP10000 Host Bus Adapter (HBA), the array may experience periodic I/O interruption indicated by excessive filesystem activity. If misdiagnosed, this condition could lead to unnecessary hardware replacement.

This issue can occur on the following platforms:

• Sun StorEdge 3510/3511 array (JBOD) with firmware 3.2x or later when connected to the system with:

• Series LP 10000 Host Bus Adapter (HBA)

Note: This issue will only occur with the LP 10000 HBA in a direct attach (point to point) connection with the 3510/3511. I/O interruption will be isolated to ports 0 and 1 on the array.

The issue is due to an incompatibility between the LP 10000 and the Port Bypass Circuitry (PBC) used on channels 0/1 of the 3510/3511.

To determine the firmware version on the 3510/311, the following command can be run:

    sccli> show inquiry
Vendor: SUN
Product: StorEdge 3510
Revision: 327P
Peripheral Device Type: 0x0

Output from iostat(1M) will appear similar to the following; on some devices showing 100% busy on the file system:

    dd if=/dev/zero of=/dev/rdsk/c9t40d0s0 bs=1048576
          extended device statistics
    r/s    w/s   kr/s   kw/s wait actv wsvc_t asvc_t  %w  %b device
    0.5    0.0    1.5    0.0  0.0  0.0    0.0    5.1   0   0 d3
    0.5    0.0    1.5    0.0  0.0  0.0    0.0    5.1   0   0 d13
    0.5    0.0    1.5    0.0  0.0  0.0    0.0    5.0   0   0 c1t0d0
    12.0  126.0  128.0  643.5  0.0  0.1    0.0    0.5   0   6 c2t0d1
    4.5  126.0   44.0  643.5  0.0  0.1    0.0    0.5   0   5 c3t0d0
    5.0    2.0   40.0   20.0  0.0  0.0    0.0    4.5   0   3 c4t0d0
    3.0    2.0   24.0   40.0  0.0  0.0    0.0    2.1   0   1 c4t1d0
    0.0    3.5    0.0    3.0  0.0  0.0    0.0    2.5   0   0 c4t1d1
    7.5    5.5   60.0   52.0  0.0  0.1    0.0    8.4   0   6 c8t0d0
    604.0    7.0 4831.8   23.7  0.0  1.5    0.0    2.4   2  90 c8t1d0
    0.0    4.0    0.0   38.2  0.0  0.0    0.0    6.5   0   1 c8t0d1
    126.0   12.0 1008.0  148.0  0.0  1.0    0.0    6.9   0  49 c8t1d1
    13.0    0.0  104.0    0.0  0.0  0.1    0.0    7.0   0   9 c8t0d2
    51.0   11.0  408.0   44.0  0.0  0.5    0.0    7.9   0  38 c8t1d2
    0.0    4.0    0.0   20.7  0.0  0.0    0.0    0.4   0   0 c2t0d3
    1.0    1.0    8.0    6.0  0.0  0.0    0.0   11.2   0   2 c8t0d3
    3.0    0.5   24.0    4.0  0.0  0.0    0.0    6.3   0   2 c8t0d4
    0.0    0.0    0.0    0.0  0.0  1.0    0.0    0.0   0 100 c9t40d0 <---
          extended device statistics
    r/s    w/s   kr/s   kw/s wait actv wsvc_t asvc_t  %w  %b device
    2.0    0.0   13.5    0.0  0.0  0.0    0.0    3.1   0   1 d3
    0.5   25.5    4.0   29.2  0.2  0.8    8.4   31.4  22  23 d7
    1.0    0.0    8.0    0.0  0.0  0.0    0.0    0.3   0   0 d13
    0.5   26.5    4.0   29.7  0.0  0.2    0.0    8.9   0   9 d17
    1.0    0.0    5.5    0.0  0.0  0.0    0.0    5.8   0   1 d23
    0.0   25.5    0.0   29.2  0.0  0.8    0.0   31.5   0  22 d27
    1.5   26.5   12.0   29.7  0.0  0.2    0.0    8.6   0   9 c1t0d0
    1.0   40.0    5.5   36.5  0.0  1.2    0.0   28.1   0  27 c1t1d0
    5.5  108.5   60.0  615.5  0.0  0.1    0.0    0.9   0   5 c2t0d1
    1.5  111.0   16.0  614.2  0.0  0.1    0.0    1.1   0   4 c3t0d0
    12.0    2.5   96.5   20.0  0.0  0.0    0.0    3.2   0   5 c4t0d0
    21.0    1.5  152.5    4.0  0.0  0.1    0.0    3.5   0   8 c4t1d0
    22.5    0.0  180.0    0.0  0.0  0.1    0.0    6.5   0  15 c8t0d0
    412.0    5.0 3295.8   84.0  0.0  0.9    0.0    2.1   1  82 c8t1d0
    36.0    0.0  288.0    0.0  0.0  0.2    0.0    4.3   0  15 c8t0d1
    193.5   20.5 1547.9  208.0  0.0  2.0    0.0    9.5   1  86 c8t1d1
    3.0    0.0   24.0    0.0  0.0  0.0    0.0    9.7   0   3 c8t0d2
    53.0   14.0  424.0  112.0  0.0  0.8    0.0   11.3   0  56 c8t1d2
    2.0    0.0   16.0    0.0  0.0  0.0    0.0   10.9   0   2 c2t0d3
    14.0    3.0   96.5   22.0  0.0  0.1    0.0    8.3   0  14 c8t0d3
    14.0 2.0 96.5 16.0 0.0 0.1 0.0 7.3 0 12 c8t0d4
    0.0   0.0    0.0   0.0  0.0  1.0    0.0   0.0   0 100 c9t40d0 <---
    ...

To work around the described issue, do one of the following:

A) Do not use the LP 1000 HBA for 3510/3511 JBOD configurations.

B) Use of a fabric switch will also remedy this issue (by adding required idles for SE3510/3511).

There are no further updates planned for this Sun Alert document. If
you need additional assistance regarding this issue, please contact Sun
Services.


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Emulex single and dual FC HBAs are referenced as LP 10000 series HBAs.

Additional information is available on the Emulex website at:

http://www.emulex.com/ts/downloads/lp10000/lp10000.html

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