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errno is EINTR). One or more bits are set in the sc_scsi_status field. This is application friendly but requires the sg driver to arrange for an orderly cleanup of those packets that are still "in flight". The error could be that scsi_alloc() has not been called, or it could be due to missing or incorrect values.

The tape cannot be unloaded, the /var/adm/message log will show:   Mar 14 12:49:38 server02 tldcd[19756]: [ID 559682 daemon.notice] TLD(2) closing/unlocking robotic path Mar 14 12:49:38  server02 tldcd[9536]: [ID 919746 daemon.notice] The request cannot be fulfilled by the server VMware.com Communities Search Search Home > Blogs > Support Insider Support Insider VMware Support News, Alerts, and Announcements Post navigation ← How to esx-esxhost1.local-2012-04-30-14.41/var/run/log/vmkernel.1:2012-04-29T14:38:02.029Z cpu21:4117)NMP: nmp_PathDetermineFailure:2084: SCSI cmd RESERVE failed on path vmhba1:C0:T0:L16, reservation state on device naa.6005076801890072500000000000065d is unknown. EIO r A read() with the older sg_header structure yields this value for some errors that it detects.

Scsi Decoder

Getting hold of such information for devices like scanners can be quite challenging (if the vendor does not provide it). The "const" on the 'buffer' pointer is respected by the sg driver. If the scan command shows devices appearing and re-appearing, then the passthrough driver is not the cause.  If the device(s) permanently disappear, it may be worth reconfiguring the passthrough driver.  If

c)  MSEO is not compatible with Asynchronous Tapemarks which were introduced in NetBackup 7.1   Symptoms include write and/or read errors on tapes encrypted with MESO.  Creating the empty file ' pack_id This value is not normally acted upon by the sg driver. The majority of drive/tape issues have a cause outside of NetBackup.  When troubleshooting these issues it is advisable to start the troubleshooting process at the hardware/firmware level.   It should always Robtest Commands We have also seen this when there is a high fan in ratio from the blades through the interconnect (creating severe congestion in the interconnect), and when there is a bad

The first entry (index 0x0) contains a pointer to a null string. Nmp_throttlelogfordevice In both cases these are requests subject to various dynamic constraints. This field is required. https://kb.vmware.com/kb/289902 Returns 0 if successful, otherwise -1 implies an error.

The type of timeout is unsigned int (and it represents milliseconds). Auto Empty Media Access Port Request Rejected By Tldcd, Unable To Sense Robotic Device In the case of a fork(), 2 processes will be sharing the same memory mapped area together with the sg driver for a sg_fd and the last one to close the Host Adapter Concepts The host adapter driver is the driver that is called by the kernel to attach the SCSI controller at boot time while the kernel is exploring the hardware Defunct file descriptors that remain for some time, perhaps awaiting a timeout, can be observed with the cat /proc/scsi/sg/debug command.


If direct IO was requested and performed then SG_INFO_DIRECT_IO will be matched. The idea is to allow interface variants in the future that identify themselves with a different value. [The parallel port generic driver (pg) uses the letter 'P' to identify itself.] The Scsi Decoder An example of this occurs when the device does not respond in which case a 'host_status' or 'driver-status' error will be conveyed back to the user application. Robot Inventory Failed: Unable To Sense Robotic Device (202) A (possibly later) version of this document can be found at www.torque.net/sg/p/sg_v3_ho.html.

This Hung Command prevents all i/o to that target and makes on of the paths dead on both ESX 4.0 hosts. If a request is sent to a write() with the sg_io_hdr_t interface then the corresponding read() that fetches the response must also use the sg_io_hdr_t interface. Older SCSI parallel buses have a parity bit for error detection. The "[i->o]" members are meant to aid an application matching the request sent to a write() to the corresponding response received by a read(). State In Doubt; Requested Fast Path State Update

Status is returned in sr_status. The QLogic driver ql takes its options by the more modern route of the DEVICE_ADMIN statement (see "Storing Device and Driver Attributes" in Chapter 2 and "Retrieving Administrator Attributes" in Chapter In all systems, DMA mapping hardware allows a SCSI adapter to treat discontiguous memory locations as if they were a contiguous buffer, providing scatter and gather support. SC_CMDTIME The device responded to selection but the command did not complete before sr_timeout expired.

esx-esxhost1.local-2012-04-30-14.41/var/run/log/vmkernel.1:2012-04-29T14:39:22.028Z cpu10:550864)NMP: nmp_PathDetermineFailure:2084: SCSI cmd RESERVE failed on path vmhba1:C0:T0:L17, reservation state on device naa.6005076801890072500000000000065e is unknown. Robot Inventory Failed: Unable To Open Robotic Path (201) For example, a tape device driver might require exclusive access, while a disk device driver would not. See also SRH_BADSYNC.

Table 16-8.

This type of driver is sometimes termed as a "pass through". Your tools for this are the find and grep commands. Sg3_utils packageB. Robotic Library Is Down On Server In all cases 'sb_len_wr' <= 'mx_sb_len' .

Refer to "Convenience Vertexes" for information on how the SCSI host adapter driver creates the hwgraph aliases. It saysName Vendor Model Driver Transport Options Claim Options DescriptionVMW_SATP_ALUA NETAPP tpgs_on NetApp with ALUAAnd then if you check the default psp for VMW_SATP_ALUA satp it is.Name Default PSP DescriptionVMW_SATP_ALUA VMW_PSP_MRU It is available in plain text and pdf renderings at that site. Known Issues: Some 6GB SAS HBAs are not compatable mpt_sas driver as details in Oracles Technote:  http://docs.oracle.com/cd/E19253-01/821-0382/821-0382.pdf TapeAlert/Tape Alert      A tape alert message is a critical, warning, or informational

The SCSI driver can learn the following things from a call to scsi_info(): If the return is NULL, there is a serious problem with the device or the information about it. Attachment Products Subscribe to Article Search Survey Did this article answer your question or resolve your issue? It is generally okay for a robot to detect as the default "Unknown Medium Changer" in the Windows Device Manager. Errors will be reported if the cartridge memory fails.

The Origin 200 system has two SCSI controllers per chassis and the possibility of optional SCSI controllers using PCI and MSCSI interfaces. If IRIX allowed multiple drivers to operate the host adapter, there would be confusion and errors from the conflicting uses. When run, it issues operating system level SCSI commands to the devices configured in the operating system, and the output of the command is sent from the devices themselves. Other cases yield an EPERM error.