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- CHAPTER 9
Disk and Floppy Drives Test (disktest)
-
disktest verifies the functionality of hard disk drives and floppy drives using three subtests (see TABLE 9-1). The disktest test performs a random seek check followed by a read test or a read after a write test on the disk. Most disk drives, such as SCSI disks, native or SCSI floppy disks, IPI, and so on, are supported. The type of drive being tested is displayed on the top of the option menu.
- Initially, disktest probes the disks under /dev/rdsk. It checks all of the partitions of each disk in the Functional test mode. If any partition has a file system that is not yet mounted, disktest pre-mounts these partitions for the File System subtest. The pre-mount point bears the name of the disk partition appended with a system-wide unique number. For example, if the disk name is /dev/dsk/c0t3d0, disktest mounts it as superuser under the name /disktest_c0t3d0. The option menu shows all partitions (except the swap partition) that are available for testing. The File System subtest can only be run if the selected partition is mounted. The Write option of the Media subtest is allowed only if a selected partition is not mounted.
-
disktest tests the floppy drive regardless of whether the Volume Management software is running.
-
- If the Volume Management software is running, disktest tests the disk drive with the mount point name in the /etc/mnttab file.
-
Caution - If a power failure occurs while the Media subtest is being run in write mode, disk data will be destroyed.
-
- If the Volume Management software is not running, disktest tests the disk drive with the device name dev=/dev/diskette. Do not edit the /etc/vold.conf file to change the floppy drives. Currently, the SunVTS software is hard-coded to use these path names as the default logic name.
- Table 2-1 describes the disktest subtests.
-
TABLE 9-1 disktest
| Subtest | Description |
|
| Media Subtest | Verifies disk media by writing data to and reading data from the disk. The Media subtest treats a disk as one large chunk of contiguous data. This is a scalable test, that can run multiple copies of it in read/write mode on the same disk partition. To avoid data corruption, all simultaneous instances of disktest communicate through a shared memory service. This ensures that different copies of the media subtest do not overlay the same disk block at the same time.
|
| File System Subtest | Verifies the disk system's integrity. The file system subtest exercises the partition being tested to determine if it is mounted. If the partition is not already mounted or pre-mounted, then the test is blocked. The test opens two temporary files (of the size specified on File System File Size) and performs a Read/Write test. |
| Asynchronous I/O Subtest | Uses the asynchronous read/write feature of the Solaris disk driver to exercise the disk. In read-only mode, the test sends a maximum of four asynchronous read packets, each with a random size and a random offset into the selected partition. The test then waits for all outstanding I/O activity to complete before issuing another round of packets. This process continues until the whole area being tested is covered. In read-write mode, one write packet is issued in every four read packets as a spot check of the write operation. Before data is written to a particular location, data is backed up, write-verified, and restored to its original state. |
disktest Test Options
FIGURE 9-1 disktest
-
The disktest test (see Figure 2-1 and Table 2-2) has different option menus for different test modes.
-
TABLE 9-2 disktest
| disktest Options | Description |
|
| Partition | Displays the partition for the Media subtest. If a partition is mounted, its mount point is appended after the partition number, such as 1(/usr), where 1 is the partition number, and /usr is the mount point. |
| Test Media | Enables or disables the Media subtest |
| Media Write Read Mode | Enables Read-Only or Read mode after write, with or without backup |
| Media Coverage (%) | Enables users to test all or part of a partition (in percentages) |
| Test File System | Enables or disables the File System subtest; File System File Size: creates a file system file size twice the size as what is specified. |
| File System Transfer Size | Displays the transfer size of the File System subtest.
File System Test Pattern: Test pattern of File System subtest |
Connection Test for Hard
Disk | Option Menu for hard disk partition: 0 - 7 [default]
Test Media: [Enable~](fixed to Enable)
Test Mode: [Read Only~](fixed to Read Only)
Media Coverage(%): [1](default - can be changed)
Media Transfer Size: [2KB]
Test File System: [Disable~](fixed to Disable) |
-
TABLE 9-2 disktest(Continued)
| disktest Options | Description |
|
| Online Mode for Hard Disk | Online Mode for hard disk partition: 0 - 7 [default]
Test Media: [Enable]<- [Disable]
Test Mode: [ReadOnly~](fixed to ReadOnly)
Media Coverage(%): [10]
Media Transfer Size: [2KB] [10KB] [20KB] <- [40KB] [60KB]
Test File System: [Disable~](fixed to Disable) |
| Functional Test for Hard Disk | (under SCSI-devices group): partition: 0 - 7 [default] Test Media: [Enable]<- [Disable] Mode: [ReadOnly]<- [BackupWriteRead] [NoBackupWriteRead] Media Coverage(%): [30] Media Transfer Size: [2KB] [10KB] [20KB] <- [40KB] [60KB] Test File System: [Enable] [Disable] <- File System File Size:[512KB]<-[2MB][8MB][20MB] [100MB] [200MB] File System Transfer Size:[512B]<- [1024B][10KB][40KB] [100KB] File System Test Pattern:[sequential] [0x00000000] [0xffffffff] [0x5aa55aa5] [0xdb6db6db] [random]
|
| Functional Test for Floppy Disk | (under Other-Devices group): partition: 0 - 7 [default] Test Media: [Enable]<- [Disable] Mode: [ReadOnly]<- [BackupWriteRead] [NoBackupWriteRead] Media Coverage(%): [30] Media Transfer Size: [2KB]<- [10KB] [20KB] Test File System: [Enable] [Disable] <- File System File Size:[512KB]<- [2MB] [8MB] [20MB] [100MB] [200MB] File System Transfer Size:[512B]<- [1024B] [10KB] File System Test Pattern:[sequential] [0x00000000] [0xffffffff] [0x5aa55aa5] [0xdb6db6db] [random]
NOTE: The floppy disktest can only be run in Functional test.
|
disktest Test Modes
-
disktest supports all three test modes. It performs different test schemes on the network device according to the mode you select.
- .
-
TABLE 9-3 disktest
| Test Mode | Description |
|
| Connection Test | This mode is only available for the hard disk test. There is no connection test for the floppy driver test. Only one instance of disktest is allowed for each disk device, which monitors UNIX error messages. disktest displays messages and reports errors. The test also opens the hard disk, checks the disk configuration, reads a few blocks, and then closes the hard disk. No File System subtest is run. No Write option is available in connection test. |
| Functional Test | This mode does not allow disktest to monitor UNIX error messages. More than one instance of disktest is allowed for one disk device. Both File System subtest and Media subtest can be run in Functional test. Floppy test can also be run in Functional test If you invoke SunVTS through SyMON, the following Functional Test description applies: This mode is only available for the hard disk test. There is no Online mode for the floppy driver test. Only one instance of disktest is allowed for each disk device, which monitors UNIX error messages. disktest displays messages and reports errors. In this mode, disktest also opens the hard disk, checks the disk configuration, and executes the Media subtest. Next, disktest performs random seek checks. Only Read Only mode is allowed. The default coverage is 30%. No File System subtest is run. When the test finishes, disktest closes the disk device being tested. No Write option is available in Online mode
|
disktest Command Line Syntax
-
-
/opt/SUNWvts/bin/disktest standard_arguments -o p=n,-i=n,
-w=n,dev=<device_name>,partition=<0-7>,rawsub=E/D,rawrw=,
rawcover=,rawiosize=,fssub=,fssize=,fsiosize=,fspattern=
-
TABLE 9-4 disktest
| Argument | Explanation |
|
| p=number | Sets the number of passes for the test to run; default is 1 |
| i=number | Sets the number of total instances for the test; default is 1 |
| w=number | Determines which instance this test is assigned; default is 0 |
| dev=<device_name> | Specifies the name of the disk to be tested, such as c0t3d0 |
| partition=<0-7> | Specifies the partition number to test as partition=6(/ export/s6) if mounted on partition 6 |
| rawsub=Enable/Disable | Enables or disables the media subtest |
| rawrw=
Readonly
BackupWriteRead NoBackupWriteRead
| Specifies the Media subtest Read and Write mode: -Read Only -Write, read then backup -Write, read without backup
|
| rawcover= | Specifies media coverage from 0-100% of the partition, such as 70526f |
rawiosize=<2KB,10KB
20KB,40KB,60KB> | Specifies the media size to transfer |
| fssub=Enable/Disable | Enables or disables the file system subtest |
| fspattern=<data pattern> | Specifies the file system data pattern as sequential or random. {seq(uential)/0x0(0000000)/0xf(fffffff)/0xa (5a5a5a5)/ 0x5(a5a5a5a)/ran(dom)/0xd(b6db6db)} |
| fssize=<file system size> | Indicates the file system subtest size in kilobytes or megabytes:
K/k/KB/kb:kilobytes, M/m/MB/mb: megabytes |
| fsiosize=<file system I/O transfer size> | Indicates the size of the file system subtest I/O transfer in bytes or kilobytes: {512B/1024B/10KB/40KB/100KB}
|
disktest Error Messages
-
TABLE 9-5 disktest
| Error Message | Probable Cause(s) | Recommended Action |
| 6000 | Re-reading and recomparing | Media error | If the problem persists, call |
-
-
block <number> on <name> your authorized Sun service
- Faulty cable, disk, or
- provider.
- controller
-
-
6002 Error on recomparing block
- Media error.......If the problem persists, call
-
-
<number> on <name> your authorized Sun service
- Faulty cable, disk, or
- provider.
- controller
-
| 6004 | <name> failed on <name>, blk <number>: <error_message> | Faulty cable, disk, or controller | If the problem persists, call your authorized Sun service provider. |
| 6006 | Compare error on <name>, block <number>, offset <number> | Faulty cable, disk, or controller | If the problem persists, call your authorized Sun service provider. |
-
-
6008 Compare error: Block
-
| Media error | If the problem persists, call your authorized Sun service |
| <number> on <name> wasprovider.hex pattern of <number> |
| 6010 |
|
| 6014 | <name> read failed on disk, |
| Media error | If the problem persists, call |
| in-between blocks <number>and <number>: <name>controller | your authorized Sun service |
| 6016 |
|
| 6018 | <name> write failed on |
| Media error | If the problem persists, call your authorized Sun service |
-
-
disk, in-between blocks
<number> and <number>:
- Faulty disk or controller
- provider.
-
-
<name>
-
| 6020 | <name> write failed due to
unexpected end of media: |
-
TABLE 9-5 disktest(Continued)
| Error Message | Probable Cause(s) | Recommended Action |
| 6022 | <name> compare failed on | Media error | If the problem persists, call |
-
-
<name>, block <number>, your authorized Sun service
- offset <number>
- Faulty disk or controller
- provider.
-
-
6024 Couldn't close <name>
- Faulty disk or controller..If the problem persists, call your authorized Sun service
- System error
- provider.
-
| 6026 | failed automount <name>
onto <name>:<error_message> | Un-supported file system | Disable the file system
subtest. |
|
|
| System error | Disable the file system subtest . |
|
|
| If the problem persists, call your authorized Sun service provider. |
| 6028 | <error_message> |
|
|
| 8000 | File system subtest only allow to run on off-line mode | Parameter error | Re-enter the command line correctly. |
| 8002 | malloc() failed | System load too heavy |
|
|
| System error |
|
| 8006 | File operation error: | Lack of system resource | Reduce the system load. |
| Couldn't <name> file <name>
on <name>: <error_message> | Permission error | Check directory or file
permission. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8008 | Not enough free blocks on <name> (partition <number>) |
| Try another partition or delete files. |
| 8010 | No writable partition on <name> |
| Try another partition. |
| 8012 | No file system on device: <name> |
| Use newfs to create the file system. |
|
|
| Disable the file system subtest. |
| 8014 | Couldn't run fstest on any partition of device: | File system not supported | Disable the file system subtest. |
| <name>(except 2) |
|
|
| System error | If the problem persists, call your authorized Sun service provider. |
-
TABLE 9-5 disktest(Continued)
| Error Message | Probable Cause(s) | Recommended Action |
|
| 8016 | Cannot open device: <name> | Parameter error | Enter the correct name of disk as dev=c0t3d0. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8018 | Couldn't mount /dev/dsk/ <name> | Parameter error | Enter the correct name of disk as dev=c0t3d0. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8020 | Couldn't remove temporary dir <name>: <error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8022 | fail get semaphore: | Lack of system resource | Reduce the system load. |
| <error_message> |
|
|
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8024 | failed lock mtab semaphore: "semap" system call failure, errmsg <error_message> | disktest instances exceed system semaphore operation limitation (default system limit for seminfo_semmnu=30)><syste m software error>
| Add the line "set semsys: seminfo_semmnu=0x100" to your /etc/system file and reboot the machine. If the problem persists, call your authorized Sun service provider. |
| 8026 | fail unlock mtab semaphore: <error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8028 | failed get_volmgr_name() |
|
|
| 8030 | Couldn't open <name>: | Cable loose or disconnected | Check the cable. |
| <error_message> |
|
|
|
| Device off line or missing | Check the device on line. |
|
| Device not configured | Configure the device. |
| 8032 | Get file state <name> failed: <error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8034 | Couldn't open <name> | Permission error | Check the permissions. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
-
TABLE 9-5 disktest(Continued)
| Error Message | Probable Cause(s) | Recommended Action |
|
| 8036 | failed putmntent(): <error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8038 | fail rename file | Permission error | Check permission. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8040 | Couldn't get mount table entry for <name> |
|
|
| 8042 | Invalid device name in
<name> | Parameter error | Enter the correct name of disk
as dev=c0t3d0. |
| 8044 | Message table overflow on device <name> | Parameter error | Enter the correct name of disk as dev=c0t3d0. |
- System error.......If the problem persists, call your authorized Sun service
- Program error
- provider.
-
| 8046 | Invalid controller id <name> for <name> | Parameter error | Re-enter the command line correctly. |
|
| 8048 | <name>, disk DKIOCINFO ioctl: <name> | Controller is not supported | Disable the file system subtest. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8050 | failed getting shared | Lack of system resource | Reduce the system load. |
| memory for monitor <number>: <error_message>: | System error | If the problem persists, call your authorized Sun service provider. |
| 8052 | failed attaching monitor | Lack of system resource | Reduce the system load. |
| shared
memory:<error_message>
| System error | If the problem persists, call your authorized Sun service provider. |
| 8053 | failed create monitor | Lack of system resource | Reduce the system load. |
| shared memory <number>: |
|
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8054 | Shm remove error:
<error_message> | System error | If the problem persists, call
your authorized Sun service
provider. |
-
TABLE 9-5 disktest(Continued)
| Error Message | Probable Cause(s) | Recommended Action |
|
| 8056 | New error messages in
system log. Extracted | Faulty cable/disk/controller | See /var/adm/messages for
more information. |
| below:<error_message> |
| If the problem persists, consult your authorized Sun service provider. |
| 8060 | fails to open any partition
of <name> | File system not mounted | Mount the file system then
run the test. |
|
|
| Disable the file system subtest. |
|
|
| If the problem persists, call your authorized Sun service provider. |
| 8060 | failed getting semaphore: <error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8062 | failed getting shared memory: <error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8064 | failed attaching shared memory:<error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8068 | failed unlocking semaphore: <error_message> | System error | If the problem persists, call your authorized Sun service provider. |
| 8070 | fail open floppy disk | No floppy disk in drive | Check the floppy disk. |
| 8072 | failed FDIOGCHAR on floppy ioctl | System error | If the problem persists, call your authorized Sun service provider. |
-
-
8074 ioctl DKIOCGGEOM failed
- File system not supported If the problem persists, call your authorized Sun service
- System error
- provider.
-
| 8074 | ioctl DKIOCGAPART failed | System error | If the problem persists, call your authorized Sun service provider. |
|
| 8076 | fail initialize shared memory | System error | If the problem persists, call your authorized Sun service provider. |
| 8078 | Illegal parameters on Online Mode | Parameter error | Enter the correct option. |
-
TABLE 9-5 disktest(Continued)
| Error Message | Probable Cause(s) | Recommended Action |
|
| 8080 | Illegal parameters on Conn. Mode | Parameter error | Enter the correct option. |
| 8082 | failed get_volmgr_name() | No floppy disk in drive | Check the floppy disk. |
| 8084 | Mounted file system on | Not enough disk space | Reduce the system load. |
| device! |
|
|
|
| Permission error | Check directory or file permissions. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8086 | Invalid controller id <number> from <name> | Parameter error | Enter the correct name of disk as dev=c0t3d0. |
| 8088 | Couldn't get file system information on <name> errno=<number> | System error | If the problem persists, call your authorized Sun service provider. |
| 8090 | ioctl() failed on <name>:
<name> | System error | If the problem persists, call
your authorized Sun service
provider. |
| 8092 | Fail to get disk
information | No supported disk | No UNIX message monitor
feature in this disk(2). |
|
| System load too heavy | Reduce the system load |
| 8094 | Failed to create a message
base for controller
<number> | No disk under this controller | Connect the disk driver then
run the test again. |
| 8096 | fail to make directory | Lack of system resource | Reduce the system load. |
| <name> |
|
|
|
| Permission error | Check directory or file permissions. |
|
| System error | If the problem persists, call your authorized Sun service provider. |
| 8098 | Failed to mount partition | Does this disk only have partition 2 | Partition 2 must be manually mounted. |
| 8010 | r/w is on /dev/r<name> | System error | If the problem persists, call your authorized Sun service provider. |
| 8102 | write/read count error | Out of disk space | Try another partition or delete some files. |
-
TABLE 9-5 disktest(Continued)
| Error Message | Probable Cause(s) | Recommended Action |
|
| 8104 | failed to create buffer | Not enough memory | Reduce the system load. If the problem persists, call your authorized Sun service provider. |
| 8106 | failed aioread() : <offset> <error number> <error string> | Faulty cable, disk, or controller | If the problem persists, call your authorized Sun service provider. |
| 8108 | failed aiowrite() : <offset> <error number> <error string> | Faulty cable, disk, or controller | If the problem persists, call your authorized Sun service provider. |
| 8110 | failed aiooperation() : <number> <text> | Faulty cable, disk, or controller | If the problem persists, call your authorized Sun service provider. |
|
|
