Installation (ESX)

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Revision as of 08:04, 22 September 2009 by Sstrutt (talk | contribs) (Added "Vmkernel Log Analysis")
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Password Complexity Override

In order to be able to change a user (or root) password to one that breaches password complexity checking

  1. Disable PAM module
    • esxcfg-auth --usepamqc -1 -1 -1 -1 -1 -1
  2. Disable complexity checker
    • esxcfg-auth --usecrack -1 -1 -1 -1 -1 -1
  3. Change password
  4. Re-enable PAM module
    • esxcfg-auth --usepamqc=-1 -1 -1 -1 8 8

HBA and SAN Operations

HBAnywhere Installation

  1. Download the Driver and Application kit for VMware from Emulex's website.
    • At time of writing the current version of package was elxvmwarecorekit-esx35-4.0a45-1.i386.rpm
  2. Copy the package to the server
    • EG pscp -pw [password] elxvmwarecorekit-esx35-4.0a45-1.i386.rpm platadmn@dtcp-esxsvce01a:/home/platadmn
  3. Install the package
    • EG rpm -ivh elxvmwarecorekit-2.1a42-1.i386.rpm

HBA Firmware Upgrade

Requires HBAnywhere to be installed 1st, see HBAnywhere Installation for further info.

  1. Download the correct firmware version from Emulex's website
  2. Extract, and copy file to server
  3. Find adapter's WWPN's
    • EG /usr/sbin/hbanyware/hbacmd ListHBAs
  4. Download new firware version to each HBA
    • EG /usr/sbin/hbanyware/hbacmd download 10:00:00:00:c9:82:97:9e zf280a4.all

EMCgrab Collection

  1. Download correct verion from EMC's website
  2. Copy to server
    • EG pscp emcgrab_ESX_v1.1.tar platadmn@dtcp-esxsvce02a:/home/platadmn
  3. Uncompress the file
    • EG tar -xvf emcgrab_ESX_v1.1.tar
  4. Run grab (can take a few minutes, best done out of hours)
    • EG ./emcgrab.sh
  5. Results can be found in \emcgrab\outputs folder

Vmkernel Log Analysis

Storage Monitor Log Entries

How to decode the following type of entries...

Sep  3 15:15:14 tfukesxent1 vmkernel: 85:01:23:01.532 cpu4:2264)StorageMonitor: 196: vmhba1:2:0:0 status = 2/0 0x6 0x2a 0x1
Sep  3 15:15:32 tfukesxent1 vmkernel: 85:01:23:19.391 cpu4:2253)StorageMonitor: 196: vmhba1:3:9:0 status = 2/0 0x6 0x2a 0x1

The status message consists of the follow four decimal and hex blocks...

Device Status / Host Status Sense Key Additional Sense Code Additional Sense Code Qualifier

Where the ESX Device and SAN host status' mean...

Decimal Device Status Host Status
0 No Errors Host_OK
1 Host No_Connect
2 Check Condition Host_Busy_Busy
3 Host_Timeout
4 Host_Bad_Target
5 Host_Abort
6 Host_Parity
7 Host_Error
8 Device Busy Host_Reset
9 Host_Bad_INTR
10 Host_PassThrough
11 Host_Soft_Error
24 Reservation Conflict

Where the Sense Key mean...

Hex Sense Key
0x0 No Sense Information
0x1 Last command completed but used error correction
0x2 Unit Not Ready
0x3 Medium Error
0x4 Hardware Error
0x5 ILLEGAL_REQUEST (Passive SP)
0x6 LUN Reset
0x7 Data_Protect - Access to data is blocked
0x8 Blank_Check - Reached an unexpected region
0xa Copy_Aborted
0xb Aborted_Command - Target aborted command
0xc Comparison for SEARCH DATA unsuccessful
0xd Volume_Overflow - Medium is full
0xe Source and Data on Medium do not agree

The Additional Sense Code and Additional Sense Code Qualifier mean

Hex Sense Code
0x4 Unit Not Ready
0x3 Unit Not Ready - Manual Intervention Required
0x2 Unit Not Ready - Initializing Command Required
0x29 Device Power on or SCSI Reset