Setting up RAID Volumes
SoftRAID vs Apple's RAID
SoftRAID 2 vs SoftRAID 3
SoftRAID 3 Features and Specifications
Below is an extensive and detailed list of SoftRAID 3 Features and Specifications. For questions on these, please contact us at firstname.lastname@example.org.
The current shipping version is SoftRAID 3.6.8. This release only supports Mac OS X Tiger and Leopard (10.4.x or later, including 10.5.x). Mac OS X Panther and Jaguar users (10.3.x
or 10.2.x) should contact email@example.com for SoftRAID version 3.5.6.
SoftRAID Core Technology:
- Application and Driver were written exclusively for Mac OS X
100% new code.
- Entire application and driver written using Cocoa™.
- Native Mac OS X disk driver.
- Partition based volume management.
Mac OS X 10.4 or higher. 10.3.x users should contact firstname.lastname@example.org for version 3.5.6
- Requires Mac OS computer with built-in PPC G3, G4 or G5 processor. Also works on Macintosh Intel processors.
- Requires OS X 10.2 updated PCI firmware for SCSI and ATA cards.
- Requires 2 or more drives for SoftRAID.
- Older Macintosh computers (G3/G4 upgraded) that run Mac OS X 10.2 usually work, but we can not "officially" support them.
- Requires modern FireWire bus (Ti/Oxford) for best operation (Beige G3 and the B&W G3 are not good machines to run FireWire drives with SoftRAID.)
- First generation FireWire drives are NOT supported, they may generate I/O
errors. These drives contain the LSI firmware bridge chip. All FireWire
drives with the Oxford or Ti chipsets are supported with SoftRAID.
SoftRAID 3 does not support Mac OS 9, meaning that any volume created
by SoftRAID 3 or converted to SoftRAID 3 will not be available if you
boot into Mac OS 9. (this has no effect on "classic mode").
SoftRAID 3 GUI:
Multi-threaded, modern interface.
- "Permissions based" application, follows all Mac OS X password and permissions guidelines.
- Graphic links between disks and volumes.
- Volume tiles which give information on the state of the volume.
- Disk tiles which give information on disks, and their state.
- All elements updated in real time, as new disks and volumes appear.
SoftRAID 3 Features:
- Supports non-RAID, RAID 0 (Stripe) and RAID 1 (Mirror) volumes.
- Supports creation of non-RAID and Mirror startup volumes.>
- Supports ATA, SATA, SCSI, Fibre Channel, FireWire 400 & 800, and USB 1 & 2.
- Supports any mix of drives and volume types in a system.
- Supports creation and deletion of volumes without affecting existing volumes.
- Supports up to 4PB volume size.
- Supports all Mac OS X compatible PCI cards with device buses, such as FibreChannel, FireWire, ATA, and SCSI cards.
- Supports moving existing volumes to new CPU's.
- Supports moving drives to different buses (moving ATA disks with existing volumes into FireWire cases, for instance).
- RAID 0 supports up to 16 disks per volume.
- RAID 0 can be optimized for Servers, Workstation, Digital Video, Digital Audio.
- RAID 0 supports 32, 64 or 128K "stripe unit size" increments.
- RAID 1 monitors status of Mirror volumes at all times, notifying users whether volumes are "Optimal", "Out-of-Sync", "Failed", or "Missing Secondary".
- RAID 1 supports up to 15 secondary disks per Mirror volume.
- RAID 1 supports creation of "Read-only secondary" drives.
- RAID 1 supports adding and removing disks without initializing disks.
- RAID 1 volumes can automatically initiate rebuilds.
- Gives an overall view of all disks and volumes.
- Display's SoftRAID version and driver version loaded in main window.
- Displays links to/from volumes and disks by clicking on them.
- Expandable tiles for volumes and disks, displays information detail on disks: bus, ID, size, free space, drive model, serial number, I/O requests, and I/O errors; and on volumes: volume name, volume size, file system, RAID type, RAID status, optimization, journaling enabled/disabled, I/O requests, I/O errors.
- Displays active driver version, and application version.
- Displays bay numbers on Apple Xserve.
- Creates RAID 1, RAID 0 and non-RAID volumes, on any combination of disks.
- Initialize disk drives with Apple Partition Map (APM) for PowerPC and GUID Partition Table (GPT) for Intel.
- Zero disk, either first 100 sectors or entire disk.
- Convert to SoftRAID 3 - can convert OS 9 controlled disks to SoftRAID 3, both Apple and SoftRAID controlled disks.
- Convert to Apple format - can convert SoftRAID partition disks to Apple format. Non-RAID SoftRAID volumes will become Apple Standard volumes. SoftRAID mirror and stripe volumes will become Apple RAID volumes.
- Exclusive "Blink Disk Light" feature to help identify disks.
- Can create volumes optimized for Digital Video, Digital Audio, Servers and Workstation.
- Can create HFS, UFS, and Case Sensitive HFS file systems on volumes.
- Can erase any volume without deleting it (useful for scratch volumes).
- Delete volumes.
- Mount volumes.
- Enable/disable file system Journaling on any SoftRAID volume.
- Rebuild Mirror volumes.
- Set Mirror primary disk.
- Split Mirror function, can split a mirror into non-RAID, "Read-only secondary" volume, or if 2 or more disks are split, split off a Mirror volume.
- Recover a Failed Mirror volume when a volume fails due to I/O errors.
- Add Secondary Disk to existing Mirror.
- Remove Missing Secondary disks from existing Mirror.
- Convert Read-only Secondary disk to non RAID volume, or rebuild the ROS to its original Mirror volume.
- Convert non-RAID volume to Mirror volume.
- Clear I/O counters, by selected disks or volumes.
- Show System Log file to search for problems or when I/O errors occurred.
- Cancel functions, such as zero disk, or Mirror rebuilds.
- Uninstall the SoftRAID driver from the system.
Preference controlled functions:
- SoftRAID Application.
- Require Administration password to launch SoftRAID.
- Remember window positions.
- Display Completion Dialogs.
- Open/Close disk and Volume tiles by default.
- Write Volume errors to System Console log.
- Record recoverable errors.
- Use all disks for mirror reads.
- Automatically rebuild Mirror volumes.
- Save I/O counts to disk at shutdown or restart.
- Save I/O counts at intervals (1 min, 10 min, 1 hour, 24 hours).
- Mirror Volume secondary timeout (15 sec, 1 min, 2 min).
- Options to display/not display various notifications.
- Mirrors Volume is out of Sync.
- Mirror Volumes rebuild is done.
- Mirror Volume is missing secondary.
- Disk has an error.
- Disk has a recoverable error.
- 16 disks per RAID volume (Stripe or Mirror).
- 60 partitions per disk.
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