home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 8 Other
/
08-Other.zip
/
e52os2s.exe
/
raidgui.hlp
(
.txt
)
< prev
next >
Wrap
OS/2 Help File
|
1998-05-27
|
30KB
|
914 lines
ΓòÉΓòÉΓòÉ 1. RAID Administration ΓòÉΓòÉΓòÉ
RAID Administration enables you to conveniently manage RAID systems. The state
of your RAID system is represented graphically, so keeping track of a critical
system is as simple as glancing at your monitor. Status updates occur
automatically and alert you with changing icons and symbols. Managing multiple
RAID systems is just as simple, because multiple graphical representations can
be displayed simultaneously.
The following features are available.
o RAID Adapter Information
o RAID Virtual Drive Information
o RAID Enclosure Information
o RAID Device Information
o RAID Device Statistics
o RAID Adapter Statistics
o RAID Virtual Drive Statistics
ΓòÉΓòÉΓòÉ 2. Keys Help ΓòÉΓòÉΓòÉ
When two key names are joined by a plus sign (+), use these two keys together.
Hold down the first key and press the others in sequence.
Alt+Esc
Switch to the next open window, full-screen session, or icon that is
minimized on the desktop.
Alt+Shift+Tab
Make the desktop window active.
Alt+F4
Close the local window.
Alt+F5
Return the window to its prior size and location.
Alt+F7
Enables you to move the active window to a different location.
Alt+F8
Enables you to size the active window with the arrow keys.
Alt+F9
Removes the active window and all of its associated windows. The windows
are hidden or minimized, depending on how the program was written.
Alt+F10
Enlarge the active window to its largest possible size (maximize).
Ctrl+Alt+Del
Restart the operating system on the local system.
Ctrl+Esc
Display the Window List on the local system.
Print Screen
Print the contents of the remote window to the default local printer.
ΓòÉΓòÉΓòÉ 3. Viewing Scale ΓòÉΓòÉΓòÉ
The Viewing Scale dialog is used to shrink or expand the main RAID display
window. This enables many RAID systems to be displayed and viewed at one time.
The number chosen is a scaling factor relative to a unit scale of 1.0. Choosing
a viewing scale of .5, for example, will make the RAID system view 50% smaller
as compared to a viewing scale of 1.0.
ΓòÉΓòÉΓòÉ 4. Virtual Drive Columns ΓòÉΓòÉΓòÉ
The Virtual Drives Columns dialog is used to aid display of RAID systems. By
choosing the number of virtual drives that will appear in a single column, it
is possible to fit many RAID system views on one display or just keep your
desktop uncluttered.
ΓòÉΓòÉΓòÉ 5. Add Enclosure ΓòÉΓòÉΓòÉ
Select enclosure type that will be placed last in the list of enclosures.
Select OK to add the enclosure. Select Cancel to return to the Enclosure
Configuration window.
ΓòÉΓòÉΓòÉ 6. Enclosure Information ΓòÉΓòÉΓòÉ
The RAID Enclosure Information dialog gives general information about the
enclosure, cabinet, or housing of the designated RAID system.
o Enclosure model is the standard name of the enclosure. If this enclosure
houses the primary central processing unit, Enclosure model will be the
model of the computer.
o Enclosure manufacturer is the name of the company that constructed the
enclosure or computer.
o If the serial number of the enclosure can be determined, it will appear
in the Serial Number field.
o Number of RAID adapters will display the number of recognized RAID
adapters in a particular enclosure.
o Enclosure function indicates if the enclosure houses the central
processing unit or is an auxiliary enclosure for additional RAID devices.
ΓòÉΓòÉΓòÉ 7. Device Statistics ΓòÉΓòÉΓòÉ
The Device Statistics dialog displays helpful data about your RAID devices.
o Reads
o Sectors Read
o Writes
o Sectors Written
o Parity Error Count
o Soft Error Count
o Hardware Error Count
o Disk Timeouts
ΓòÉΓòÉΓòÉ 8. Reads ΓòÉΓòÉΓòÉ
Number of read operations.
ΓòÉΓòÉΓòÉ 9. Sectors Read ΓòÉΓòÉΓòÉ
Number of sectors read.
ΓòÉΓòÉΓòÉ 10. Writes ΓòÉΓòÉΓòÉ
Number of write operations.
ΓòÉΓòÉΓòÉ 11. Sectors Written ΓòÉΓòÉΓòÉ
Number of sectors written.
ΓòÉΓòÉΓòÉ 12. Parity Error Count ΓòÉΓòÉΓòÉ
Number of parity errors encountered and resolved.
ΓòÉΓòÉΓòÉ 13. Soft Error Count ΓòÉΓòÉΓòÉ
Number of errors encountered and recovered.
ΓòÉΓòÉΓòÉ 14. Hardware Error Count ΓòÉΓòÉΓòÉ
Number of hardware errors encountered. In most cases this number will rise
dramatically before a device failure.
ΓòÉΓòÉΓòÉ 15. Disk Timeouts ΓòÉΓòÉΓòÉ
Number of write or read requests that failed due to a timeout.
ΓòÉΓòÉΓòÉ 16. Add Device ΓòÉΓòÉΓòÉ
To add a device:
1. Insert the device into the desired bay.
2. Select Add Device from the Device Functions menu item.
ΓòÉΓòÉΓòÉ 17. Remove Device ΓòÉΓòÉΓòÉ
To remove a device:
1. Select Remove Device from the Device Functions menu item.
2. The device can now be removed.
ΓòÉΓòÉΓòÉ 18. Rebuild Device ΓòÉΓòÉΓòÉ
A RAID device rebuild enables a failed device to be replaced with a working
device of equal or greater capacity. This can only be done on virtual drives
with a RAID level of 1 or 5.
ΓòÉΓòÉΓòÉ 19. Rebuild to Another Device ΓòÉΓòÉΓòÉ
A RAID device can be rebuilt to another device if there is an available working
hot spare device of equal or greater capacity. This can only be done on
virtual drives with a RAID level of 1 or 5.
ΓòÉΓòÉΓòÉ 20. Stop Device ΓòÉΓòÉΓòÉ
Stop Device stops a device and places the drive in the defunct state. This
command should be used with the utmost of care because stopping a drive that is
online and functioning could cause loss of data.
ΓòÉΓòÉΓòÉ 21. Set Hot Spare Device ΓòÉΓòÉΓòÉ
Causes the drive to become a Hot Spare device. The device will automatically
substitute itself for any device on a RAID level 1 or 5 virtual drive that is
malfunctioning or not operational. This will only work if every virtual drive
in the array is redundant.
ΓòÉΓòÉΓòÉ 22. Adapter Information ΓòÉΓòÉΓòÉ
Adapter Information gives helpful information about your adapter.
o Adapter Identifier
o Adapter Slot
o Buses Available
o Configured Devices
o Device I/O
o Host Bus
o Adapter Status
o Manufacturer
o Model
ΓòÉΓòÉΓòÉ 23. Adapter Identifier ΓòÉΓòÉΓòÉ
A unique identifier for the adapter. For Microchannel adapters, this is the
POSID. For PCI adapters, this field is not applicable.
ΓòÉΓòÉΓòÉ 24. Adapter Slot ΓòÉΓòÉΓòÉ
The slot, if it can be ascertained, of the RAID adapter.
ΓòÉΓòÉΓòÉ 25. Buses Available ΓòÉΓòÉΓòÉ
Number of buses or channels available of this RAID adapter.
ΓòÉΓòÉΓòÉ 26. Configured Devices ΓòÉΓòÉΓòÉ
The number of configured devices. Non-configured devices are not counted but
may be present.
ΓòÉΓòÉΓòÉ 27. Device I/O ΓòÉΓòÉΓòÉ
The protocol that the adapters use to transfer data to and from RAID devices.
ΓòÉΓòÉΓòÉ 28. Host Bus ΓòÉΓòÉΓòÉ
The host bus type. Common types are Microchannel, PCI, ISA, and EISA.
ΓòÉΓòÉΓòÉ 29. Adapter Status ΓòÉΓòÉΓòÉ
The status of the adapter. RAID Adapters may attain any of the states listed:
o Online
o Offline
o Diagnostics
ΓòÉΓòÉΓòÉ 30. Adapter Specific Data ΓòÉΓòÉΓòÉ
Adapter Specific Data gives advanced information about your adapter.
o Stripe Size
o Rebuild Control
o Parity Storage
o Read Ahead
ΓòÉΓòÉΓòÉ 31. Adapter Statistics ΓòÉΓòÉΓòÉ
Adapter Statistics show real time information about your RAID adapter.
o Minutes Elapsed Since Controller Start
o Recovered Parity Errors
ΓòÉΓòÉΓòÉ 32. Minutes Elapsed Since Controller Start ΓòÉΓòÉΓòÉ
The number of minutes since the controller started operation.
ΓòÉΓòÉΓòÉ 33. Recovered Parity Errors ΓòÉΓòÉΓòÉ
The number of times that the adapter encountered a parity error and resolved
the conflict.
ΓòÉΓòÉΓòÉ 34. Virtual Drive Information ΓòÉΓòÉΓòÉ
Displays helpful information about virtual drives on your RAID system.
o Virtual Drive Number
o Virtual Drive Size
o Virtual Drive Status
o Virtual Drive RAID level
o Virtual Drive Write Policy
ΓòÉΓòÉΓòÉ 35. Virtual Drive Statistics ΓòÉΓòÉΓòÉ
Provides real time information about virtual drives on your RAID system.
o Reads
o Sectors Read
o Writes
o Sectors Written
o Reads From Cache
ΓòÉΓòÉΓòÉ 36. Reads From Cache ΓòÉΓòÉΓòÉ
The number of reads that were serviced from cache. The RAID controller did not
have to access the device to satisfy the request.
ΓòÉΓòÉΓòÉ 37. Scrub Virtual Drive ΓòÉΓòÉΓòÉ
Scrub verifies and fixes the parity information on redundant arrays such as
RAID level 1 or 5 arrays.
ΓòÉΓòÉΓòÉ 38. Standard Device Information ΓòÉΓòÉΓòÉ
Standard Device Information provides realtime information about system devices.
o Device status
o Device number
o Channel
o Device
o Device size in kilobytes
o Device type
o Sectors
o Manufacturer
o Model, Version
o Serial Number
ΓòÉΓòÉΓòÉ 39. RAID ΓòÉΓòÉΓòÉ
RAID (Redundant Array of Independent Disks) is a technology whereby several
physical storage devices (fixed disks) are grouped into one or more virtual
drives that appear to the operating system as one or more physical drives.
RAID technology allows you to configure the virtual drives in a variety of
configurations. These configurations (called RAID levels) provide varying
levels of data integrity, protection, storage capacity, and speed.
The common RAID levels are:
o RAID Level 0
o RAID Level 1
o RAID Level 5
o RAID Level 6
o RAID Level 7
ΓòÉΓòÉΓòÉ 40. RAID Level ΓòÉΓòÉΓòÉ
RAID Level describes the method by which data is stored on the physical devices
of an array. Common RAID Levels are :
o RAID Level 0
o RAID Level 1
o RAID Level 5
o RAID Level 6
o RAID Level 7
ΓòÉΓòÉΓòÉ 41. RAID Level 0 ΓòÉΓòÉΓòÉ
RAID Level 0 stripes data across all of the devices making up each virtual
drive. RAID Level 0 devices do not use any form of data mirroring or data
redundancy.
Note: Because RAID Level 0 does not use any form of data mirroring or
redundancy, the failure of even one physical device results in a loss of data
for the virtual drive. However, RAID Level 0 maximizes the storage capacity of
the virtual drive because no storage space is used to store parity information.
RAID Level 0 also provides the best speed advantage of the various RAID levels.
ΓòÉΓòÉΓòÉ 42. RAID Level 1 ΓòÉΓòÉΓòÉ
RAID Level 1 stripes data across all of the devices making up each virtual
drive. Enhanced IBM RAID Level 1 uses data mirroring to ensure data integrity.
Because the data is mirrored, the capacity of the virtual drive is one half of
the total capacity of all the physical devices in the array. Enhanced Data
Mirroring is also known as RAID Level 6.
ΓòÉΓòÉΓòÉ 43. RAID Level 5 ΓòÉΓòÉΓòÉ
RAID level 5 stripes all data and parity information across all physical
devices in the virtual drive. This striping method enables the RAID system to
reconstruct data when any one of the physical devices fails or is removed from
the array. The virtual drive will continue to be operational (at reduced
performance) should this occur.
The capacity of a RAID Level 5 virtual array is ((N-1)/N) multiplied by the
total physical capacity of all N devices (N is the number of devices in the
array).
ΓòÉΓòÉΓòÉ 44. RAID Level 6 ΓòÉΓòÉΓòÉ
RAID Level 6 is IBM Enhanced RAID Level 1 which features data mirroring. Disk
space available is 50% of the total physical capacity. Maximum data protection
is available through RAID Level 6.
ΓòÉΓòÉΓòÉ 45. RAID Level 7 ΓòÉΓòÉΓòÉ
RAID Level 7 is RAID Level 0 striped across one physical device.
ΓòÉΓòÉΓòÉ 46. Virtual Drive ΓòÉΓòÉΓòÉ
A virtual drive is created by the RAID adapter by combining several physical
drives and presenting them to the operating system as an individual drive or
series of individual drives. Virtual drives are represented by cylinders on
the main RAID Service display window.
ΓòÉΓòÉΓòÉ 47. Array ΓòÉΓòÉΓòÉ
An array is a group of physical disks.
ΓòÉΓòÉΓòÉ 48. Data Mirroring ΓòÉΓòÉΓòÉ
Data mirroring is a format used in some RAID levels that helps to ensure data
integrity. Data mirroring makes a mirror copy of the data so that if one
device in the virtual drive fails or is removed from the array, all data will
be safeguarded AND the drive will continue to be operational albeit at lower
reduced performance. A minimum of 2 devices is required for data mirroring.
ΓòÉΓòÉΓòÉ 49. Hot Spare ΓòÉΓòÉΓòÉ
A hot spare is a physical device that is kept ready and in a waiting state for
use by a virtual drive of RAID Level 1, 5, or 6. Should a device fail the hot
spare will automatically take the failed devices' place.
If another device in the array fails while the hot spare is coming on line,
data loss will result thus it is important to replace drives as quickly as
possible.
When a device fails, the hot spare will automatically become an active member
of that virtual drive. The failed device should be replaced. After the failed
device is replaced it will become the hot spare.
ΓòÉΓòÉΓòÉ 50. Data Striping ΓòÉΓòÉΓòÉ
Data Striping is the process by which data is distributed across all devices in
a virtual array. Striping improves data throughput during normal system
operation. Striping sizes or stripe widths are usually multiples of 8
kilobytes. Once a stripe size is set it should not be changed. Changing the
stripe size destroys all data on all drives connected to that adapter.
ΓòÉΓòÉΓòÉ 51. Virtual Drive Write Policy ΓòÉΓòÉΓòÉ
The virtual drive write policy is the method used to write data to the array
when cache memory is present on the RAID adapter. Cache memory provides a
buffer area in which data is stored temporarily. The RAID adapter can then
write the data to the drive array when it is most efficient for it to do so.
Cache memory can be configured to handle data to be written to a drive in one
of two ways:
o Write Through
o Write Back
ΓòÉΓòÉΓòÉ 52. Write Through ΓòÉΓòÉΓòÉ
When cache memory is configured to use Write Through mode, all data is written
directly to the drive. The process that initiated the write will wait until the
data has been successfully written to the drive. This can impact operating
system performance. However, data integrity is ensured because data is not held
in memory prior to being written.
ΓòÉΓòÉΓòÉ 53. Write Back ΓòÉΓòÉΓòÉ
When cache memory is configured to use Write Back mode, data is written
directly to the cache memory, which then stores the data and writes it to the
drive when the drive is not is use by another process or when a timeout value
is reached. Performance is increased because the process that generated the
data does not have to wait for the data to be physically written to the drive.
However, the data stored in cache memory can be lost if the system loses power
before the data is written to the drive.
ΓòÉΓòÉΓòÉ 54. Device Status ΓòÉΓòÉΓòÉ
The Device Status describes the current state of the selected RAID device.
Device status can be any of the following:
o Online
o Hot Spare
o Ready
o Rebuild
o Defunct
ΓòÉΓòÉΓòÉ 55. Online ΓòÉΓòÉΓòÉ
The device is in an active, operational, error free state.
ΓòÉΓòÉΓòÉ 56. Hot Spare ΓòÉΓòÉΓòÉ
The device is an active Hot Spare. It is powered up but not an active part of
the virtual drive.
ΓòÉΓòÉΓòÉ 57. Ready ΓòÉΓòÉΓòÉ
The device has passed the device ready command and is ready to be brought into
active Online service.
ΓòÉΓòÉΓòÉ 58. Rebuild ΓòÉΓòÉΓòÉ
The device is currently rebuilding itself from data on other devices in the
array or virtual drive.
ΓòÉΓòÉΓòÉ 59. Defunct ΓòÉΓòÉΓòÉ
The drive is defunct and is non-operational and most likely defective. It
should be replaced immediately.
ΓòÉΓòÉΓòÉ 60. Device Number ΓòÉΓòÉΓòÉ
A unique identifier for the device. Also indicates the placement of the device
on the bus.
ΓòÉΓòÉΓòÉ 61. Channel or Bus ΓòÉΓòÉΓòÉ
The channel or bus indicates which cable the device is currently on. The bus is
a one based count.
ΓòÉΓòÉΓòÉ 62. Sectors ΓòÉΓòÉΓòÉ
Number of 512 byte sectors on this device.
ΓòÉΓòÉΓòÉ 63. Bay ΓòÉΓòÉΓòÉ
Physical location within a bank where and drive can be displayed.
ΓòÉΓòÉΓòÉ 64. Enclosure Bank ΓòÉΓòÉΓòÉ
A physical group of bays on an enclosure that are logically tied together.
This can also be defined as the location in the enclosure for the back-planars.
ΓòÉΓòÉΓòÉ 65. Device size in kilobytes ΓòÉΓòÉΓòÉ
Size of the device in kilobytes . A kilobyte is 1024 bytes.
ΓòÉΓòÉΓòÉ 66. Device ΓòÉΓòÉΓòÉ
Indicates the device. RAID devices are normally fixed disks but CD-ROMS and
Tape devices may also be present.
ΓòÉΓòÉΓòÉ 67. Device type ΓòÉΓòÉΓòÉ
Indicates the protocol that the device uses to communicate with the RAID
controller.
Common Protocols
o SCSI - RAID Administrator can only ascertain that the protocol is SCSI.
o SCSI I - SCSI I addresses a maximum of 7 devices per channel. 5Mhz I/O
transfer.
o SCSI II - SCSI II addresses a maximum of 7 devices per channel. 5Mhz I/O
transfer.
o SCSI Fast Wide - SCSI addressing up to 14 devices per channel.
o IDE
ΓòÉΓòÉΓòÉ 68. Scrub ΓòÉΓòÉΓòÉ
Select Scrub to recompute the parity information on a RAID Level 1, RAID Level
5, or RAID Level 6 virtual drive. The data on the drive is not changed.
ΓòÉΓòÉΓòÉ 69. Adding and Deleting RAID Adapters ΓòÉΓòÉΓòÉ
Before adding or removing any RAID adapters from your system, be sure that your
system is powered down. Once your system is powered down, follow the
manufacturers recommended procedure for installation or removal of the adapter.
When the adapter is installed or removed, restore power to your system. The
RAID status will be updated automatically.
ΓòÉΓòÉΓòÉ 70. Stripe Unit Size ΓòÉΓòÉΓòÉ
Stripe Unit Size is the amount of data written to each successive device in the
virtual drive. All of the units assembled form a stripe. This physical
parameter is also known as the interleave depth. The minimum number of bytes
that the adapter will read from a device is the stripe unit size. The stripe
unit can be 8, 16, 32, or 64 Kbytes.
ΓòÉΓòÉΓòÉ 71. Rebuild Control ΓòÉΓòÉΓòÉ
Because Rebuilding is an intensive and sometimes time consuming operations,
RAID Administration enables you to prioritize these operations. Low, Medium,
and High priorities can be assigned to the operations. Higher priority will
enable the operation to complete more quickly, but will slow down normal
operations.
ΓòÉΓòÉΓòÉ 72. Read Ahead ΓòÉΓòÉΓòÉ
Read Ahead enables the RAID adapter to read data into its cache before the data
is needed. This speeds up the next read request, enhancing the system's
performance.
ΓòÉΓòÉΓòÉ 73. Manufacturer, Model, and Serial Number Information ΓòÉΓòÉΓòÉ
The Manufacturer, Model, and Serial Number information, if available, are shown
as an aid in identifying the components of the RAID system.
ΓòÉΓòÉΓòÉ 74. RAID View Device Statistics ΓòÉΓòÉΓòÉ
Select any device in the main RAID system window with a right button click.
Select View Device Statistics from the pulldown menu.
ΓòÉΓòÉΓòÉ 75. RAID View Adapter Statistics ΓòÉΓòÉΓòÉ
Select any adapter in the main RAID system window with a right button click.
Select View Adapter Statistics from the pulldown menu.
ΓòÉΓòÉΓòÉ 76. RAID View Virtual Drive Statistics ΓòÉΓòÉΓòÉ
Select any virtual drive in the main RAID system window with a right button
click. Select View Virtual Drive Statistics from the pulldown.
ΓòÉΓòÉΓòÉ 77. RAID Adapter Information ΓòÉΓòÉΓòÉ
Select any adapter in the main RAID system window with a right button click.
Select View Adapter Information from the pulldown menu.
ΓòÉΓòÉΓòÉ 78. RAID Virtual Drive Information ΓòÉΓòÉΓòÉ
Select any virtual drive in the main RAID system window with a right button
click. Select View Virtual Drive Information from the pulldown menu.
ΓòÉΓòÉΓòÉ 79. RAID View Device Information ΓòÉΓòÉΓòÉ
Select any device in the main RAID system window with a right button click.
Select View Device from the pulldown menu.
ΓòÉΓòÉΓòÉ 80. RAID Enclosure Information ΓòÉΓòÉΓòÉ
Select any enclosure in the main RAID system window with a right button click.
Select View Enclosure from the pulldown menu.
ΓòÉΓòÉΓòÉ 81. Physical Array ΓòÉΓòÉΓòÉ
A RAID physical array is a collection of physical devices combined to act as
one or more physical devices or virtual drives.
ΓòÉΓòÉΓòÉ 82. RAID Adapter Online Status ΓòÉΓòÉΓòÉ
The RAID adapter is active.
ΓòÉΓòÉΓòÉ 83. RAID Adapter Offline Status ΓòÉΓòÉΓòÉ
The RAID adapter is non-active or in a maintenance or error state.
ΓòÉΓòÉΓòÉ 84. RAID Adapter Diagnostics Status ΓòÉΓòÉΓòÉ
The RAID adapter is in a diagnostic mode but is otherwise functioning as
desired.
ΓòÉΓòÉΓòÉ 85. Virtual Drive Number ΓòÉΓòÉΓòÉ
The number of the virtual drives corresponds to the number representation in
fdisk.
ΓòÉΓòÉΓòÉ 86. Virtual Drive Size ΓòÉΓòÉΓòÉ
Size of the virtual drives in kilobytes.
ΓòÉΓòÉΓòÉ 87. Virtual Drive RAID Level ΓòÉΓòÉΓòÉ
RAID level of the virtual drive. Valid levels are 0, 1, 5, 6, and 7.
ΓòÉΓòÉΓòÉ 88. RAID Virtual Drive Status ΓòÉΓòÉΓòÉ
RAID Virtual drives may attain any of the states listed:
o Online
o Offline
o Critical
o Busy
ΓòÉΓòÉΓòÉ 89. RAID Virtual Drive Offline Status ΓòÉΓòÉΓòÉ
The RAID Virtual Drive is offline due to one or more defunct devices. Data loss
is occurring if the RAID level is 0 and one device is defunct. Data loss is
occurring if the RAID level is 1 or 5 and two or more devices are defunct. The
devices should be rebuilt or replaced as soon as possible.
ΓòÉΓòÉΓòÉ 90. RAID Virtual Drive Critical Status ΓòÉΓòÉΓòÉ
The RAID Virtual Drive is Critical due to a defunct device on a RAID Level 0 or
1 drive. The drive is operating at decreased speed and efficiency. Data loss
is not occurring. However, should another drive subsequently fail, data loss
will occur. The defunct drive should be replaced and rebuilt immediately.
ΓòÉΓòÉΓòÉ 91. RAID Virtual Drive Busy Status ΓòÉΓòÉΓòÉ
The RAID Virtual Drive is busy due to a rebuild in progress on a member device.
Diagnostics may also cause this status to appear.
ΓòÉΓòÉΓòÉ 92. Backup Configuration to Diskette ΓòÉΓòÉΓòÉ
The internal RAID configuration can be backed up to diskette for an additional
level of protection. Should your system fail and all safeguards fail the
configuration on your diskette can be used as a last ditch effort to rebuild
your system.
ΓòÉΓòÉΓòÉ 93. Parity Storage ΓòÉΓòÉΓòÉ
Parity storage placement determines how parity information is written to disk
with respect to the data (either Right Asymmetric and Left Symmetric).
ΓòÉΓòÉΓòÉ 94. RAID Virtual Drive Online Status ΓòÉΓòÉΓòÉ
The RAID Virtual Drive is online.
ΓòÉΓòÉΓòÉ 95. Save Adapter Configuration ΓòÉΓòÉΓòÉ
Specify a file for the adapter configuration information.
ΓòÉΓòÉΓòÉ 96. Status ΓòÉΓòÉΓòÉ
The Status dialog shows the progress of certain long-duration operations as a
percentage of the total work that is required to complete the operation.
Select OK to remove the status dialog. Select the Cancel to cancel the
operation that is in progress. Some operations cannot be cancelled, in which
case Cancel will be disabled and will appear grayed.
ΓòÉΓòÉΓòÉ 97. Configure Device Numbers ΓòÉΓòÉΓòÉ
The Configure Device Numbers window shows the current values for the bays of
the chosen enclosure banks. The numbers are 1 higher than the SCSI ID assigned
to the drive in that bay. Changing the device numbers will cause a drive on
the assigned adapter channel with that number to be shown in that bay. The
range of numbers are the valid IDs supported by the chosen adapter channel.
Choose the reset pulldown to change the numbers back to the last saved
configuration.
ΓòÉΓòÉΓòÉ 98. Save Configuration ΓòÉΓòÉΓòÉ
Choose this pulldown from the Options menu to save the enclosure information.
The information and new drive locations will change on the main RAID system
window after you choose this option. If you do not want to save, close the
window by double-clicking in the upper left hand corner of the Enclosure
Configuration window, and then select No when asked if you want to save the
enclosure information.
ΓòÉΓòÉΓòÉ 99. Delete Enclosure ΓòÉΓòÉΓòÉ
To delete an enclosure, select the enclosure that you want to delete with the
right mouse button and then select Delete Enclosure from the context menu. No
warning will be given before the enclosure is removed.
ΓòÉΓòÉΓòÉ 100. Change Enclosure ΓòÉΓòÉΓòÉ
To change an enclosure, select the enclosure with the right mouse button and
then select the Change Enclosure option. This will show the Add Enclosure
window. Choose one of the displayed list of enclosures. To make no changes
select Cancel. When the new enclosure appears in the Enclosure Configuration
window, all enclosure banks will be assigned to No Adapter. To have any
devices show in the enclosure, the bank must be set to the correct adapter
channel.
ΓòÉΓòÉΓòÉ 101. Enclosure Configuration ΓòÉΓòÉΓòÉ
The Enclosure Configuration window can be used to add or change enclosures for
the main RAID system window. Once the correct number and type of enclosures
have been set, the enclosure banks and device numbers of the banks can be
mapped to different adapter channels to represent non-default configurations
for the Host-CPU and additional enclosures. To have any devices shown in an
enclosure, the bank must be set to the correct adapter channel. The Configure
Device Numbers option may also have to be used to correctly display the
devices.
o Add Enclosure
o Configure Device Numbers
o Save Configuration
o Delete Enclosure
o Change Enclosure