Qtmm is a simple afsk1200 decoder that uses the computers sound card for input. From the scsi 2 specification i include two tables. A scsi device status target b scsi host status initiator. When a scsi target device returns a check condition in response to a command, the initiator usually then issues a scsi request sense command. The primary reference for the decoding is spc3 ansi incits linux manual pages. Im developing a scsi target software and im new to scsi and i need to return correct sense data to tell initiator, that its request didnt go through because data were protected from writing. Hi, call dell back up and give them these sense code readings, you should get your parts shortly. More information on cve20155177 esxi openslp remote code execution match linux scsi devices sdx to virtual disks in vmware. Use the legend and links below to decipher the status of the host, and devices during the scsi event. This is from a decade ago, so i thought it time to update the urls and post it to lj. Selection of either option will invoke a bus scan and display all attached devices. Decoder software free download decoder top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Note when you interpret the hexadecimal data in the event id to the status code, remember that the values are represented in the little endian format. The target will respond to the request sense command with a.
How to correct ultra320 scsi bus reset ems errors wiki. Serial attached scsi sas diagnostics and test tools. Recorded entity not found descriptor sense data with sense descriptors in hex. Youll need to find a manual for your scsi controller and find out what those sense codes mean. Key code qualifier is an errorcode returned by a scsi device when a scsi target.
An acquisition is taken, then analyzed before the next acquisition. For general information about dvd decoders for windows, including a list of software decoders, see article q306331, supported software mpeg2 dvd decoders in windows media player for windows xp and windows vista, in the microsoft knowledge base. Hi everyone, there is a tool created by florian grehl for decoding esxi scsi sense codes. In the pdl state, the storage array can communicate with the vsphere host and will issue scsi sense codes to indicate the status of the device. This utility takes scsi sense data in binary or as a sequence of ascii hexadecimal bytes and decodes it. One core audience for softwaredefined storage is obviously storage professionals. Sense codes described when the disk utility option of scsi select is chosen, two options are displayed, format disk and verify disk. Isolate the scsi events, and focus on the hexadecimal values. Decoder for esxi scsi sense codes hi everyone, there is a tool created by florian grehl for decoding esxi scsi sense codes. Send scsi request sense command to device and output the parameter data response which is expected to be in sense data format.
Jun 18, 2016 download qtmm afsk1200 decoder for free. Table 365 is a numerical order listing of the command operation codes. The target will respond to the request sense command with a set of scsi sense data which includes three fields. For encryption records, see the troubleshooting section of the ibm ts3500.
This section introduces all possible combinations of sense keys, additional sense codes asc, and additional sense code qualifiers ascq that are reported by the 3584 tape library. I need to see commands which send to my scsi device. Most likely your hard drive is in a prefailure condition, meaning it hasnt failed yet but its having problems. 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. Im searching for command line utility to decode them in humanreadable format. The scsi reference manual defines two types of sense data formats fixed and variable descriptorbased ones chapter 2. If its under warranty, you can call your vendor too and tell them about the sense code and they may just ship you out a replacement. It has a secure encryption for passwords, serial numbers, pin codes and more. The storage vendor advised to install a new software version of the storage array which fixed this problem by.
In a couple of vms w2k3 we got sympi errors not all and the vms are not on the same lun. Verify disk is a nondestructive test and is used to verify sector and block information on hard drives. In addition, pay special note to the sense key specific area at offset 1517. Contribute to logical paradoxscsi cdb development by creating an account on github. Get tough in protecting your data with the help of this program. This process is part of a scsi protocol called contingent allegiance condition. Sep 05, 2015 in the pdl state, the storage array can communicate with the vsphere host and will issue scsi sense codes to indicate the status of the device. Scsi errors or warnings in esxi are displayed with 6 status codes. You can easily see the forums that you own, are a member of, and are following. Troubleshooting storage problems with log insight and vrops. Unless the sds vendor has an hcl and has a magic decoder right, you normally monitor drives using the out of band controller on the host, or the sds engine monitors for apdpdl high latency, etc.
This guide provides support and troubleshooting information for scsi sense key errors on any sun storedge t3, a3500, or a storage array. Interpreting scsi sense codes in vmware esxi and esx 289902. Scsi sense data includes three fields which indicate details of an error as below. When the disk utility option of scsiselect is chosen, two options are displayed, format disk and verify disk. The primary reference for the decoding is spc3 ansi incits linux manual pages session 8 starting with s. This program lets you encode or decode any time of file in your computer. This revolved around ibm magstar products since that is where i was first exposed to the guts of scsi errors. Understanding scsi error info emc community network decn. Ibm lto ultrium tape drive scsi sense keys and additional sense. Im looking at the piece of table from, describing these codes.
Hi, i need some help to understand scsi sense codes if there is a problem or not in all of my 15 esx hosts 3. Both fixed and descriptor sense data linux manual pages session 8 starting with s. The scsi sense codes follow an industry standard maintained by technical committee t10, which is a part of the international committee on information technology standards incits. I have a whole lot of these messages in my alert log. Some of the sense key and additional sense codes represent a probable software problem. The return code contains not only the status code of a scsi. Informative summaries for several of the more commonly used codes and coded values are included as annex information in the scsi primary commands x spcx. When a pdl state is detected, the host will stop sending io requests to the array as it considers the device permanently unavailable, so there is no reason to continuing issuing io to the device. This status code is returned on successful completion of a prefetch command. You can use hp library and tape tools to extract and view the data in a support ticket though it sounds like youre using a more direct scsi approach. My test software was developed for use in environmental tests with lto drives in hope that i would be able to see when drive performance was beginning to deteriorate.
Recently vmware vexpert florian grehl has developed a great tool on his website to help you decode the sense codes. It can be used to decode packet radio, aprs and telemetry from amateur radio satellites. Decoder for esxi scsi sense codes virtualization the future. The tool uses an internal database to translates scsi codes to human readable status information. Additional sense codes and additional sense code qualifiers. The initiator usually then issues a scsi request sense command in order to obtain a key code qualifier from the target. Simply enter the colored hexadecimal numbers to the form and press submit. Key code qualifier is an error code returned by a scsi device when a scsi target device returns a check condition in response to a command, the initiator usually then issues a scsi request sense command. All storage arrays and systems that communicate with your esxi host conform to this standard. Key code qualifier is an errorcode returned by a scsi device. How to decode the sense key codes returned from scsi disks. Here is information on how to decode scsi sense data.
The return code is more specific to the failure and may be decoded by referring first to the sense key and then the additional sense codes. These tables list all possible combinations of sense keys, additional sense codes asc, and additional sense code qualifiers ascq that are reported by the device. Decoder software free download decoder top 4 download. Troubleshooting storage problems with log insight and. Include seagate, samsung, western digital and other hdds. Hi brian, the logs have 7 parameters each and the hp drives only use a subset. The additional sense code and additional sense code qualifier are contained in that buffer. This page converts these sense codes from esxi hosts to human readable status information. The problem seems to be with the fnic driver for vmhba2. Decoding scsi additional sense log pages omnitech industries.