diff options
author | Ralf Baechle <ralf@linux-mips.org> | 1999-09-28 22:25:29 +0000 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 1999-09-28 22:25:29 +0000 |
commit | 0ae8dceaebe3659ee0c3352c08125f403e77ebca (patch) | |
tree | 5085c389f09da78182b899d19fe1068b619a69dd /Documentation/cpqarray.txt | |
parent | 273767781288c35c9d679e908672b9996cda4c34 (diff) |
Merge with 2.3.10.
Diffstat (limited to 'Documentation/cpqarray.txt')
-rw-r--r-- | Documentation/cpqarray.txt | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/Documentation/cpqarray.txt b/Documentation/cpqarray.txt new file mode 100644 index 000000000..45a53216f --- /dev/null +++ b/Documentation/cpqarray.txt @@ -0,0 +1,107 @@ +This driver is for Compaq's SMART2 Intellegent Disk Array Controllers. + +WARNING: +-------- + +This driver comes with NO WARRANTY. It is not officially supported by +Compaq. Do not call technical support. Use at your own risk. + +Supported Cards: +---------------- + +This driver is known to work with the following cards: + + * SMART (EISA) + * SMART-2/E (EISA) + * SMART-2/P + * SMART-2DH + * SMART-2SL + * SMART-221 + * SMART-3100ES + * SMART-3200 + * Integrated Smart Array Controller + * SA 4200 + * SA 4250ES + +It should also work with some really old Disk array adapters, but I am +unable to test against these cards: + + * IDA + * IDA-2 + * IAES + +Installing: +----------- + +You need to build a new kernel to use this device, even if you want to +use a loadable module. + +Apply the patch to a 2.2.x kernel: + +# cd linux +# patch -p1 <smart2.patch + +Then build a new kernel and turn on Compaq SMART2 Disk Array support. +Create device nodes for the diskarray device: + +# mkdev.ida [ctlrs] + +Where ctlrs is the number of controllers you have (defaults to 1 if not +specified). + +EISA Controllers: +----------------- + +If you want to use an EISA controller you'll have to supply some +insmod/lilo paramaters. If the driver is compiled into the kernel, must +give it the controller's IO port address at boot time (it is no longer +necessary to specifiy the IRQ). For example, if you had two SMART-2/E +controllers, in EISA slots 1 and 2 you'd give it a boot argument like +this: + + smart2=0x1000,0x2000 + +If you were loading the driver as a module, you'd give load it like this: + + insmod cpqarray.o eisa=0x1000,0x2000 + +You can use EISA and PCI adapters at the same time. + +Booting: +-------- + +You'll need to use a modified lilo if you want to boot from a disk array. +Its simply a version of lilo with some code added to tell it how to +understand Compaq diskarray devices. + +Device Naming: +-------------- + +You need some entries in /dev for the ida device. The mkdev.ida script +can make device nodes for you automatically. Currently the device setup +is as follows: + +Major numbers: + 72 ida0 + 73 ida1 + 74 ida2 + etc... + +Minor numbers: + b7 b6 b5 b4 b3 b2 b1 b0 + |----+----| |----+----| + | | + | +-------- Partition ID (0=wholedev, 1-15 partition) + | + +-------------------- Logical Volume number + +The suggested device naming scheme is: +/dev/ida/c0d0 Controller 0, disk 0, whole device +/dev/ida/c0d0p1 Controller 0, disk 0, partition 1 +/dev/ida/c0d0p2 Controller 0, disk 0, partition 2 +/dev/ida/c0d0p3 Controller 0, disk 0, partition 3 + +/dev/ida/c1d1 Controller 1, disk 1, whole device +/dev/ida/c1d1p1 Controller 1, disk 1, partition 1 +/dev/ida/c1d1p2 Controller 1, disk 1, partition 2 +/dev/ida/c1d1p3 Controller 1, disk 1, partition 3 |