diff options
author | wilko <wilko@FreeBSD.org> | 2000-09-09 10:02:39 +0000 |
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committer | wilko <wilko@FreeBSD.org> | 2000-09-09 10:02:39 +0000 |
commit | 81ee18f66b10b0987c69873963a2552186771844 (patch) | |
tree | 043b784b4d160c35ad727fa998662fa023ae5256 /release | |
parent | 3fa988b3957e914ad876116d4dd6531bf41d5743 (diff) | |
download | FreeBSD-src-81ee18f66b10b0987c69873963a2552186771844.zip FreeBSD-src-81ee18f66b10b0987c69873963a2552186771844.tar.gz |
Overhaul of AS2[01]0[A] description.
Diffstat (limited to 'release')
-rw-r--r-- | release/texts/alpha/HARDWARE.TXT | 85 |
1 files changed, 68 insertions, 17 deletions
diff --git a/release/texts/alpha/HARDWARE.TXT b/release/texts/alpha/HARDWARE.TXT index 10557fe..02a1ccb 100644 --- a/release/texts/alpha/HARDWARE.TXT +++ b/release/texts/alpha/HARDWARE.TXT @@ -1229,18 +1229,21 @@ kernel config file. The 'cpu EV5' is mandatory to keep config(8) happy. The AlphaServer 2[01]00 machines are aimed as departmental servers. This is medium iron, not a hobbyist system. These are multi-CPU machines, -up to 2 CPUs (AS2000) or 4 CPUs (2100[A]) can be in a single machine. +up to 2 CPUs (AS2000) or 4 CPUs (2100[A]) can be installed. Both floorstanding and 19" rackmount boxes exist. Rackmount variations have different numbers of I/O expansion slots, different max number of CPUs and different maximum memory size. Some of the boxes come with an integral -StorageWorks shelf to house hotswap SCSI disks. +StorageWorks shelf to house hotswap SCSI disks. There was an upgrade program +available to convert your Sable machine into a Lynx by swapping the +I/O backplane (the C-bus backplane remains). CPU upgrades were available +as well. Features: - 21064 EV4[5] CPU[s] at 200, 233, 275 MHz - 21164 EV5[6] CPU[s]s at 250, 300, 375, 400 MHz - cache: varies in size with the CPU model; 1, 4 or 8Mbyte per CPU -- embedded floppy controller -- embedded 10Mbit 21040 ethernet +- embedded floppy controller driving a 2.88 Mbytes drive +- embedded 10Mbit 21040 ethernet [AS2100 only] - 2 serial ports - 1 parallel port - PS/2 style keyboard & mouse port @@ -1250,42 +1253,90 @@ NOTE: Lynx support is currently flagged as experimental due to lack of CPU: The CPUs spec-ed as 200 Mhz are in reality running at 190 MHz. Maximum -number of CPUs is 4. Currently FreeBSD only uses one CPU in a multiprocessor -machine. +number of CPUs is 4. All CPUs must be of the same type/speed. + +Currently FreeBSD only uses one CPU in a multiprocessor machine. Memory: The machines use dedicated memory boards. These boards live on a 128 bit C-bus shared with the CPU boards. DemiSable supports up to 1Gb, Sable up to 2Gb. One of the memory bus slots can either hold a CPU or a memory card. -Some memory board modules house SIMMs. There are also memory modules that -have soldered-on memory chips instead of SIMMs. SIMM boards are used in sets -of eight 72-pin 36 bit FPM memory of 70ns or faster. SIMM types supported -are 1Mb x36 bit (4 Mbyte) and 4Mb x36 bit (16 Mbyte). Each memory board -can house 4 banks of SIMMs. SIMM sizes can not be mixed on a single memory -board. +A 4 CPU machine can have a maximum of 2 memory boards. + +Some memory board modules house SIMMs. These are called SIMM carriers. +There are also memory modules that have soldered-on memory chips +instead of SIMMs. These are called 'flat memory modules'. + +SIMM boards are used in sets of eight 72-pin 36 bit FPM memory of 70ns +or faster. SIMM types supported are 1Mb x36 bit (4 Mbyte) and 4Mb x36 +bit (16 Mbyte). Each memory board can house 4 banks of SIMMs. SIMM +sizes can not be mixed on a single memory board. The first memory +module must be filled with SIMMs before starting to fill the next +memory module. Note that the spacing between the slots is not that +big, so make sure your SIMMs fit physically (before buying them..) Console: Both Lynx and Sable are somewhat stubborn when it comes to serial consoles. They need >>> SET CONSOLE SERIAL before they go for a serial console. Pulling the keyboard from the machine is not sufficient, like it is on most other Alpha models. Going back to a graphical console -needs >>> SET CONSOLE GRAPHICS at the serial console. +needs >>> SET CONSOLE GRAPHICS at the serial console. On Lynx keep the +VGA card in one of the primary PCI slots. + +The machines are equipped with a small OCP (Operator Control Panel) LCD +screen. On this screen the selftest messages are displayed during system +initialisation. You can put your own little text there by using the SRM: +>>> SET OCP_TEXT "FreeBSD" + +The SRM >>> SHOW FRU command produces an overview of your configuration +with module serial numbers, hardware revisions and error log counts. Embedded SCSI: Both Sable, DemiSable and Lynx have NCR810 based Fast SCSI onboard. +Check if it is set to Fast SCSI speed by >>> SHOW PKA0_FAST. If set to +1 it is negotiating for Fast speeds. >>> SET PKA0_FAST 1 enables Fast +speeds. + +Internal disk storage: +AS2100[A] come equipped with a StorageWorks 7 slot SCSI cage. A second cage +can be added inside the cabinet. AS2000 has a single 7 slot SCSI cage, +which cannot be expanded with an additional one. Note that the slot +locations in these cages map differently to SCSI IDs compared to the +standard StorageWorks shelves. Slot IDs from top to bottom +are 0, 4, 1, 5, 2, 6, 3 when using a single bus configuration. The cage +can also be set to provide two independent SCSI buses. This is used for +embedded RAID controllers like the KZPSC (Mylex DAC960). Slot ID assignments +for split bus are, from top to bottom: 0A, 0B, 1A, 1B, 2A, 2B, 3A, 3B. +Where A and B signify a SCSI bus. In a single bus configuration the +terminator module on the back of the SCSI cage is on the TOP. The jumper +module is on the BOTTOM. For split bus operation these two modules are +reversed. The terminator can be distinguished from the jumper by noting the +chips on the terminator. The jumper does not have any active components on +it. Expansion: DemiSable has 7 EISA slots and 3 PCI slots. Sable has 8 EISA and 3 PCI -slots. Lynx, being newer, has 8 PCI and 3 EISA slots. Make sure you run the -EISA Configuration Utility (from floppy) when adding/change expansion cards -in EISA slots or after upgrading your console firmware. +slots. Lynx, being newer, has 8 PCI and 3 EISA slots. The Lynx PCI slots +are grouped in sets of 4. The 4 PCI slots closest to the CPU/memory +slots are the primary slots, so logically before the PCI bridge chip. +Note that contrary to expectation the primary PCI slots are the highest +numbered ones (PCI4 - PCI7). + +Make sure you run the EISA Configuration Utility (from floppy) when +adding/change expansion cards in EISA slots or after upgrading your +console firmware. This is done by inserting the ECU floppy and typing +RUNECU at the SRM >>> prompt. NOTE: EISA slots are currently unsupported, but the Compaq Qvision EISA VGA adapter is treated as an ISA device. It therefore works OK as a console. Power: -The machines can be equipped with redundant power supplies. +The machines can be equipped with redundant power supplies. Note that +the enclosure is equipped with interlock switches that switch off power +when the enclosure is opened. The system's cooling fans are speed +controlled. When the machine has more than 2 CPUs and more than 1 memory +board dual power supplies are mandatory. The kernel config file must contain: options DEC_2100_A500 |