If i want to look up the sense data information, where do i begin to look. You can search forum titles, topics, open questions, and answered questions. Since you dont always know where the text is located in a file, you can try the text search function. Some hex editors also scan the entire file for text passages and list all matches in a result window. Base64 encode your data in a hasslefree way, or decode it into humanreadable format. Sas creates pdf format files, it does not read them in their native. This page converts these sense codes from esxi hosts to human readable status information. The security context is a pair of gssapi data structures that contain shared. Having dogs and horses means we have an almost obsessive interest in the weather. This hexidecimal data can be interpretted, if you know where to look. After a fullsystem failure, recovering an aix server to its previous configuration, even when using mksysb, can become a difficult and timeconsuming task. A list of scsi and storage utility programs can be found on this tools page. Decoder for esxi scsi sense codes hi everyone, there is a tool created by florian grehl for decoding esxi scsi sense codes. The additional sense code qualifier ascq indicates detailed information related to the additional sense code.
Flags e include fc driver error numbers for each error. Thirdparty software, including font technology, is ed and licensed from sun suppliers. To interpret the sense data for a particular device, refer to the devices scsi specification. My assumption is that the linux can decode the characters stated above, while in aix is not. You must include either file in all programs using the library, either. New target ports in the fabric will not be logged in after this situation. Scsa defines the interface between these two components. How to decode the data section of an event id 51 event message when you decode the data section in the example that is in the summary section, you can see that an attempt to perform a write operation to lun 3 starting at sector 0x2975820a for 0x0080 sectors fails.
In regards to the sense data error, it appears that they may be due to a device cddvd that does not support rescan. Another option is to use a structure editor or a data inspector. K sense key 4 bits, byte 2 of fixed sense data format c additional sense code asc 8 bits, byte 12 of fixed sense data format. See the clause describing the request sense command in the scsi primary commands 4 spc4 draft standard or later for more information about sense data. Many asc are defined in the scsi standard while some are vendor specific and defined only in documents specific to the device. Enter the colored numbers to the form and press submit. The powerpath command line interface cli allows data center personnel.
For example, the last line says that a message was seen with id 665h 1637 decimal, that this message had 8 data bytes, and that the data bytes were in hex 40, 6c, 60, 0, 0, 0, 0, and 0. When a check condition is received, the esx storage stack will send out a scsi command 0x3 request sense in order to get the scsi sense data sense key, additional sense code. The aix freeware project supplies free oss packages built for the ibm aix operating system. Additionally, when researching this issue i also found this esxi scsi sense code decoder that may be helpful. Data protection overview data backup and protection storage data backup and protection software data protection suites cloud backup and protection copy data management. Decoding scsi additional sense log pages omnitech industries. Cdb content bit vbyte 7 6 5 4 3 2 1 0 0 operation code 1 lun reserved 2 reserved 3 reserved 4 allocation length 5 control byte 0 green in the table above is the operation code command.
You may check hgst support for how to reset or unlock the drive. However many of the medium and larger customers have a range of aix servers ranging from older aix versions such as 5. It will be at least 8 bytes long, often 18 bytes long but may be longer. Simply enter the colored hexadecimal numbers to the form and press submit. Hardly an inspiring title, but it gets the point across. Target refers to a driver for a device on a scsi bus, such as a disk or a tape drive. There is nothing more to decode to understand the can message. Base64 encoding schemes are commonly used when there is a need to encode binary data that needs be stored and transferred over media that are designed to deal with textual data. Decoding intel raid sense code messages intel raid controllers. This command is supported on aix, linux, and solaris and requires root privileges.
Can anyone tell me the pub numbers for any manuals that will help me decipher the sense data in the following errpt message. The solaris ddidki divides the software interface to scsi devices into two major parts. To order software, contact your ibm sales representative, ibm business partner, or an independent software provider. Sense data is often printed out in kernel logs and sometimes on the command line when verbose or debug flags are given. Host bus adapter refers to the driver for the scsi controller on the host machine.
Interpreting the sense data in aix disk error messages. Nice article, but there is some tool or web with db background about, how can we analyze the sense data deeply. Disk and tape errors under aix usually generate sense data in errpt. With 16 gb 4port and 32 gb 2port fc adapters with feature code. Understanding the diagnostic subsystem for aix ibm. If you attach your library to a server with nonibm software, contact your software vendor for a matrix of compatible hardware, software, firmware revisions, and adapter cards. Check out this kb, which says the messages are normal and can be ignored. Change media and retry perform problem determination procedures detail data sense data 0600 0000 1101 0000 0e00 0000 0000 0000 0102 0000 f000 0300 0000 011c 0000 0000 lower 7 bits response code lower 4 bits sense key 1400 3600 6353 7282 0001 4243 3034 3037 4c36. Ecce4018 detail data sense data 0000 0003 0000 0124.
These include no sense, media error, hardware error, unit attention, soft error, as common values. Here is information on how to decode scsi sense data. Encode and decode base64 files this page describes, in unix manual page style, a program available for downloading from this site which encodes binary files in the base64 format used by mimeencoded documents such as electronic mail messages with embedded images and audio files. You can easily see the forums that you own, are a member of, and are following. Device status 0x2 this status is returned when a command fails for a specific reason.
Aix slowness path has recovered solutions experts exchange. Parts of the product may be derived from berkeley bsd systems, li censed from the university of california. Can any one help me in fixing the disk operation errors in aix hosts. In document fibre channel planning and integration. The first three would be 64, 108, and 96 in decimal.
Support for responding to rdp els with ibm aix fcfcoe. This software contains the multipath package for aix. You can convert a portable document format pdf file to ascii by saving it from. Most probably it is encrypted and you will need the passwords. Scsi errors or warnings in esxi are displayed with 6 status codes.
Disk operation errors in aix you need to get the verbose output of the errpt with the a flag then decode the sense data to understand what the errors are. The error log analysis program within diagnostics, task selection, will decode the sense data and give a possible cause and action plan. How to get around ibm legacy software support for aix. I know it is telling me i have a failed ssa disk permanent hardware error. Aix host reports disk errors in errpt a for sacd devices. Diagnostic tool for decoding and summarizing aix io error messages. Code fixed to avoid the issue by fixing the login entry management code. Im asking this question cause im working on some piece of software which is supposed to simulate a scsi target, so i need to digest multiple scsi documents to. Somewhere i have a doc on how to decode these, please post the sense data, all the numbers at the bottom of the errpt entry, and ill go look for the doc. Problem solving and troubleshooting in aix 5l infania networks.
B6267342 disk operation error b6267342 disk operation error rybocollier isitmanagement op 28 mar 14. In the following, we will have a quick look at the data inspector of hxd 2. Part 1 discusses the davis vantage pro 2 weather station and the theory of a possible way to hack it and enhance its functionality. The service aid prompts for a file name when the log sense data is. An example tape error follows, with the scsi reponse code, scsi additional sense code asc and scsi additional sense code qualifier ascq noted.
If i know right there is only ibm internal analyzer tool so need to ask ibm aix support. I followed this thread to obtain the srn service request number from the sense data. Multipath software provides a redundant path to the storage array in case one of the physical paths is disrupted. Ibm aix provides many options for software storage configuration and allows you to tune your io performance and system availability using striping, mirroring, specific disk placement, etc. Find answers to aix slowness path has recovered from the expert community at experts exchange. This is from a decade ago, so i thought it time to update the urls and post it to lj. Chapter 14 scsi target drivers writing device drivers.
Guys, i am try to make sense of the sense data from my errpt a. The target will respond to the request sense command with a set of scsi sense data which includes three fields giving increasing levels of detail about the error. Dell emc powerpath family cli and system messages reference. Ibm ts3100 setup, operator, and service manual pdf. Doing a diag does not give me any more information, and all drives pass the test. Sense data 0600 1a00 3f00 ff00 0000 0000 0000 0000 0000 0000 0000 0000 0118 0000 0000 0000 1a here 0118.
Aix system backup more than a mksysb storix software. The sense data consists of information that can determine the exact cause of the error. The following snippet of data is an output generated upon running summ on an aix server. It is also when you will see valid sense data instead of possible sense data. The sense key data protect is received when the device locked, it might be either a physical write lock or encryption.
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