User Guide
Page 31
... Adaptec RAID controller, including the minimum and maximum number of disk drives required by your RAID controller to support the RAID level you want. Use the table on each . Note: Before you begin, familiarize yourself with your Adaptec controller's physical features and the RAID ...sized RAID 1 arrays, stripes and mirrors data across multiple disk drives. Redundancy, but reduced capacity (see page 74). ● RAID 1E Array-Similar to a RAID 1 array except that data is stored on page 80 to see Standard RAID Controller Features on page 16). ● RAID 0 (Non-redundant Array)-Stripes...
... Adaptec RAID controller, including the minimum and maximum number of disk drives required by your RAID controller to support the RAID level you want. Use the table on each . Note: Before you begin, familiarize yourself with your Adaptec controller's physical features and the RAID ...sized RAID 1 arrays, stripes and mirrors data across multiple disk drives. Redundancy, but reduced capacity (see page 74). ● RAID 1E Array-Similar to a RAID 1 array except that data is stored on page 80 to see Standard RAID Controller Features on page 16). ● RAID 0 (Non-redundant Array)-Stripes...
User Guide
Page 43
... data is complete. 12 Press Esc until the Exit utility window appears. 13 Select Yes, then press Enter. Property Line Array Type Array Label Array Size Stripe Size Read Caching Write Caching Create RAID via [Done] Entry or Selection Select...
... data is complete. 12 Press Esc until the Exit utility window appears. 13 Select Yes, then press Enter. Property Line Array Type Array Label Array Size Stripe Size Read Caching Write Caching Create RAID via [Done] Entry or Selection Select...
User Guide
Page 73
...and two 400 GB disk drives can create a RAID 0 drive segment of 250 GB, for a total of 1000 GB for the volume, as shown in equal-sized sections. For instance, an array with RAID 0 includes two or more disk drives and provides data striping, where data is an available segment. Compared ...to an equal-sized group of only one logical device at a time. Each segment can include...
...and two 400 GB disk drives can create a RAID 0 drive segment of 250 GB, for a total of 1000 GB for the volume, as shown in equal-sized sections. For instance, an array with RAID 0 includes two or more disk drives and provides data striping, where data is an available segment. Compared ...to an equal-sized group of only one logical device at a time. Each segment can include...
User Guide
Page 74
... Drive Disk Drive 1 1 3 4 6 Disk Drive 2 2 1 5 4 Disk Drive 3 3 2 6 5 RAID 1E Logical Drive = 600 GB sized disk drives, the free space, drive segment size is both mirrored and striped, and more disk drives. A RAID 1E array can be built from different- In this figure. Appendix B: Understanding RAID ● 74 RAID 1 Arrays A RAID 1 array is built from two disk drives, where...
... Drive Disk Drive 1 1 3 4 6 Disk Drive 2 2 1 5 4 Disk Drive 3 3 2 6 5 RAID 1E Logical Drive = 600 GB sized disk drives, the free space, drive segment size is both mirrored and striped, and more disk drives. A RAID 1E array can be built from different- In this figure. Appendix B: Understanding RAID ● 74 RAID 1 Arrays A RAID 1 array is built from two disk drives, where...
User Guide
Page 75
... Disk Drive) Disk Drive 2 250 GB Disk Drive 3 400 GB Disk Drive 4 400 GB Disk Drives in a RAID 10 array is built from two or more equal-sized RAID 1 arrays. Data in Logical Drive Disk Drive 1 1 3 ... 499 Disk Drive 2 2 4 ... 500 Disk Drive 3 1 3 ... 499 Unused Space = 150 GB ...Disk Drive 4 2 4 ... 500 Unused Space = 150 GB RAID 10 Logical Drive = 500 GB Appendix B: Understanding RAID ● 75 RAID 10 Arrays A RAID 10 array is both striped ...
... Disk Drive) Disk Drive 2 250 GB Disk Drive 3 400 GB Disk Drive 4 400 GB Disk Drives in a RAID 10 array is built from two or more equal-sized RAID 1 arrays. Data in Logical Drive Disk Drive 1 1 3 ... 499 Disk Drive 2 2 4 ... 500 Disk Drive 3 1 3 ... 499 Unused Space = 150 GB ...Disk Drive 4 2 4 ... 500 Unused Space = 150 GB RAID 10 Logical Drive = 500 GB Appendix B: Understanding RAID ● 75 RAID 10 Arrays A RAID 10 array is both striped ...
User Guide
Page 76
... 250 GB Drive Segment Size (Smallest Disk Drive) Disk Drive 2 250 GB Disk Drive 3 400 GB Disk Drive 4 400 GB Disk Drives in this figure. Parity data is an error-correcting redundancy that's used to provide redundancy. Appendix B: Understanding RAID ● 76 RAID 5 Arrays A RAID 5 array is built from... of the smallest disk drive in the array. Parity data provides data protection, and striping improves performance. In RAID 5 arrays, parity data (represented by Ps in the next figure) is striped evenly across the disk drives with two 250 GB disk drives and two 400 GB ...
... 250 GB Drive Segment Size (Smallest Disk Drive) Disk Drive 2 250 GB Disk Drive 3 400 GB Disk Drive 4 400 GB Disk Drives in this figure. Parity data is an error-correcting redundancy that's used to provide redundancy. Appendix B: Understanding RAID ● 76 RAID 5 Arrays A RAID 5 array is built from... of the smallest disk drive in the array. Parity data provides data protection, and striping improves performance. In RAID 5 arrays, parity data (represented by Ps in the next figure) is striped evenly across the disk drives with two 250 GB disk drives and two 400 GB ...
User Guide
Page 77
...449 Disk Drive 3 S 3 ... S Unused Space = 150 GB Disk Drive 4 P 4 ... 500 Unused Space = 150 GB Based on the drive segment sizes used: RAID 5EE Logical Drive = 500 GB plus parity and hot spare. However, capacity is reduced by two disk drives' worth of four disk drives. In this ...write speeds. Unlike a hot spare, a distributed spare is striped evenly across the disk drives with other logical disk drives. Appendix B: Understanding RAID ● 77 RAID 5EE Arrays A RAID 5EE array-also known as a hot space-is similar to a RAID 5 array except that it includes a distributed spare drive ...
...449 Disk Drive 3 S 3 ... S Unused Space = 150 GB Disk Drive 4 P 4 ... 500 Unused Space = 150 GB Based on the drive segment sizes used: RAID 5EE Logical Drive = 500 GB plus parity and hot spare. However, capacity is reduced by two disk drives' worth of four disk drives. In this ...write speeds. Unlike a hot spare, a distributed spare is striped evenly across the disk drives with other logical disk drives. Appendix B: Understanding RAID ● 77 RAID 5EE Arrays A RAID 5EE array-also known as a hot space-is similar to a RAID 5 array except that it includes a distributed spare drive ...
User Guide
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...eight disk drives configured as two or more information, see RAID 5 Arrays on page 76.) The parity data provides data protection, and striping improves performance. Drive segment size is built from six to the size of parity data. RAID 50 arrays also provide high data transfer speeds. For example,... three 250 GB disk drives and three 400 GB disk drives comprise two equal-sized RAID 5 arrays with 500 ...
...eight disk drives configured as two or more information, see RAID 5 Arrays on page 76.) The parity data provides data protection, and striping improves performance. Drive segment size is built from six to the size of parity data. RAID 50 arrays also provide high data transfer speeds. For example,... three 250 GB disk drives and three 400 GB disk drives comprise two equal-sized RAID 5 arrays with 500 ...
User Guide
Page 79
... your data because they can recover from at least four disk drives. Maximum stripe size depends on the drive segment sizes used: RAID 6 Logical Drive = 500 GB plus parity (P1 & P2) RAID 60 Arrays Similar to a RAID 50 array (see page 78), a RAID 60 array-also known as dual drive failure protection-is built from eight disk...
... your data because they can recover from at least four disk drives. Maximum stripe size depends on the drive segment sizes used: RAID 6 Logical Drive = 500 GB plus parity (P1 & P2) RAID 60 Arrays Similar to a RAID 50 array (see page 78), a RAID 60 array-also known as dual drive failure protection-is built from eight disk...
User Guide
Page 82
... more information.) Use the Array Properties menu to modify the array's RAID level, size, name, stripe size, and caching settings. Menus can be navigated using disk drives to create arrays, see page 88). Note: Also available-ACU for more than one controller, select your Adaptec controller is normal. Creating a New Array To begin creating an array, select...
... more information.) Use the Array Properties menu to modify the array's RAID level, size, name, stripe size, and caching settings. Menus can be navigated using disk drives to create arrays, see page 88). Note: Also available-ACU for more than one controller, select your Adaptec controller is normal. Creating a New Array To begin creating an array, select...
User Guide
Page 97
... 16, 32, 64, 128, 256, 512 and 1024 KB. Otherwise, specify the size as data is written to the disk drive (called full-stripe write mode), which method to use when creating a redundant (RAID 1, 1E, 10, 5, 5EE, 50, 6 and 60) array. The possible values...(gigabytes), or TB (terabytes). Maximum performance is an optional keyword, indicating which reduces overall array performance. For example: ReadCache=Yes Size Keyword The Size keyword specifies the size of a striped array (RAID 0, 10, 5, 5, 5EE, 50, 6 or 60). Specify Maximum (the default) to begin using the maximum available space,...
... 16, 32, 64, 128, 256, 512 and 1024 KB. Otherwise, specify the size as data is written to the disk drive (called full-stripe write mode), which method to use when creating a redundant (RAID 1, 1E, 10, 5, 5EE, 50, 6 and 60) array. The possible values...(gigabytes), or TB (terabytes). Maximum performance is an optional keyword, indicating which reduces overall array performance. For example: ReadCache=Yes Size Keyword The Size keyword specifies the size of a striped array (RAID 0, 10, 5, 5, 5EE, 50, 6 or 60). Specify Maximum (the default) to begin using the maximum available space,...
User Guide
Page 99
... timeout in writing command. 23 No RAID channels available 24 Error: wrong stripe size in the ACU command above. script mode. 100 You ran ACU and made changes-The ACU exited with a hot spare: # Create a 500MB volume labeled 'MySystem' Array=MySystem Type=Volume Size=500MB Drives=0:0:0 End # Create a ... of drives you must restart the computer. Sample Scripts This command invokes the ACU and creates arrays on controller 1 based on shared channel. 21 Failed in the script file A:\RAID.ACU. Appendix D: Using the Array Configuration Utility for DOS ● 99 Code Description 5 Unable to ...
... timeout in writing command. 23 No RAID channels available 24 Error: wrong stripe size in the ACU command above. script mode. 100 You ran ACU and made changes-The ACU exited with a hot spare: # Create a 500MB volume labeled 'MySystem' Array=MySystem Type=Volume Size=500MB Drives=0:0:0 End # Create a ... of drives you must restart the computer. Sample Scripts This command invokes the ACU and creates arrays on controller 1 based on shared channel. 21 Failed in the script file A:\RAID.ACU. Appendix D: Using the Array Configuration Utility for DOS ● 99 Code Description 5 Unable to ...
User Guide
Page 100
Appendix D: Using the Array Configuration Utility for DOS ● 100 # Use drives 1 and 2 Drives=0:1:0,0:2:0 # Disable write cache WriteCache=No # Assign 1 spare drive HotspareDrives=0:3:0 End This sample script file creates a maximum-size three-disk-drive RAID 5: # Create a maximum size RAID 5 labeled 'MyData' Array=MyData Type=RAID5 Size=Maximum # Use the maximum stripe size StripeSize=1024 # Clear the array (don't build/verify it) Method=Clear # Don't wait for clear to complete Wait=No # Use drives 0, 1, 2 Drives=0:0:0, 0:1:0, 0:2:0 End
Appendix D: Using the Array Configuration Utility for DOS ● 100 # Use drives 1 and 2 Drives=0:1:0,0:2:0 # Disable write cache WriteCache=No # Assign 1 spare drive HotspareDrives=0:3:0 End This sample script file creates a maximum-size three-disk-drive RAID 5: # Create a maximum size RAID 5 labeled 'MyData' Array=MyData Type=RAID5 Size=Maximum # Use the maximum stripe size StripeSize=1024 # Clear the array (don't build/verify it) Method=Clear # Don't wait for clear to complete Wait=No # Use drives 0, 1, 2 Drives=0:0:0, 0:1:0, 0:2:0 End