Table of Contents

CPU

The CHARON-AXP CPU can be calibrated with "set ace" directive and the following parameters:

enabled

Parameter	enabled
Type	Boolean
Value	A CHARON-AXP emulated CPU is configured with the "enabled" command enabling the high performance Advanced CPU Emulation mode ("ACE"). The ACE option optimizes the Alpha instruction interpretation and significantly improves performance. It also requires approximately twice the amount of host memory allocated by CHARON instance itself to store the optimized code (Note that 2Gb of host memory + the amount of Alpha memory emulated per each CHARON instance is required). ACE optimization is performed dynamically during execution. It does not need to write optimized code back to disk, ACE provides its full capability instantly. The optimization does not compromise the Alpha instruction decoding; CHARON-AXP remains fully Alpha hardware compatible and completely transparent to the Alpha operating systems and applications. This configuration setting enables the ACE mode if the CHARON-AXP license permits it. If this configuration setting is omitted from the CHARON-AXP configuration file and the license permits it, "true" is the default, otherwise "false" is the default. Example: `set ace enabled = false` "`set ace enabled=true`" is ignored when the license does not permit ACE operation.

cpu_architecture

Parameter cpu_architecture

Type Text String

Value

Specifies the architecture of the virtual Alpha CPU. Can be one of the following: EV4, EV45, EV5, EV56, EV6, EV67, EV68

Example:

set ace cpu_architecture = EV6

Refer to "Core Devices#Setting of a particular Alpha model" to find an appropriate value of the Alpha architecture per each Alpha model supported by CHARON-AXP.

cache_size

Parameter

cache_size

Type Value

Value

This parameter may affect Charon performance. Do not change this parameter until advised by Stromasys.

"cache_size" defines the amount of memory in megabytes allocated to the ACE cache.

Default value is 1GB (1024 MB).

Example:

set ace cache_size = 2048

This parameter may be changed for performance optimization in case of some guest OS specific tasks (see Enlarging ACE cache size section).

num_translators

Parameter

num_translators

Type Value

Value

This parameter may affect Charon performance. Do not change this parameter until advised by Stromasys

"num_translators" defines the number of ACE translators.

Default value in most situations is number of I/O CPUs dedicated to CHARON (defined by "n_of_io_cpus" parameter) minus 1, but in some specific situations it may be set to some other value for better performance.

Example:

set ace num_translators = 4

host_options

Parameter

host_options

Type Text String

Value

This parameter may affect Charon performance. Do not change this parameter until advised by Stromasys.

"host_options" defines options of ACE (DIT) translator and code-generator. Those options affect Charon performance

Default settings are set to optimize performance for most guest OS (VMS and Tru64) usage profiles. However there are some profiles (for example OpenVMS compilation tasks) where the default settings do not provide optimal performance.

The following switches are available to user:

1. --fixed-variant=[X]

The value X can be one of three options: [-1, 0, 1]. This value defines the desired translation variant. Set -1 for dynamic (default) or 0 or 1 for the fixed number implemented by the translator.

2. --x64-optimize or --x64-nooptimize

This switch enables translation optimizations (the default is to optimize).

Default parameters have been changed in Charon version 4.9 compared to previous versions (4.8 and below). If Charon system demonstrates lower performance after upgrade to version 4.9, please test the system with host_options switched to default 4.8 settings:

set ace host_options = "--fixed-variant=0 --x64-nooptimize"

Note that in this case the parameter "Core Devices#num_translators" must be set to the number of I/O CPUs dedicated to CHARON (see the "n_of_io_cpus" parameter). Also note that changing parameter "Core Devices#cache_size" can be an alternative solution too (see the section below).

Enabling the old style performance optimization

Despite the fact that CHARON is already optimized for wide range of the guest OS tasks, there may be some situations (for example OpenVMS compilation tasks) when performance degradation may reach about 50% of the version 4.8.

In this case the following solutions can be applied:

Enlarging ACE cache size

Try this solution first. It is recommended to enlarge the ACE cache size at least in 2 times as it is shown in the following example:

set ace cache_size = 2048

If this solution does not work for the specific guest OS tasks, apply also the next solution.

Setting specific ACE host options

Set the following set of options in the configuration file:

set session n_of_io_cpus = <N>
set ace num_translators = <N>
set ace host_options = "--fixed-variant=0 --x64-nooptimize"

where <N> is number of the I/O CPUs dedicated to CHARON. If this value is not set (the default value is used) it is recommended to specify it explicitly.

RAM

The CHARON-AXP memory subsystem is permanently loaded and has the logical name "ram".

size

Parameter	size
Type	Numeric
Value	Size of the emulated memory in MB.

Example:

set ram size = 2048

The amount of memory is capped at a maximum, this is defined in the CHARON license key. If the host system cannot allocate enough memory to map the requested emulated memory, CHARON-AXP generates an error message in the log file and reduces its effective memory size.

The following table lists the values of emulated RAM for various hardware models of virtual Alpha systems:

Hardware Model	RAM size (in MB)
	Min	Max	Default	Increment
AlphaServer 400	64	1024	512	64
AlphaServer 800	256	8192	512	256
AlphaServer 1000	256	1024	512	256
AlphaServer 1000A	256	1024	512	256
AlphaServer 1200	256	32768	512	256
AlphaServer 2000	64	2048	512	64
AlphaServer 2100	64	2048	512	64
AlphaServer 4000	64	32768	512	64
AlphaServer 4100	64	32768	512	64
AlphaServer DS10, DS10L	64	32768	512	64
AlphaServer DS15	64	32768	512	64
AlphaServer DS20	64	32768	512	64
AlphaServer DS25	64	32768	512	64
AlphaServer ES40	64	32768	512	64
AlphaServer ES45	64	32768	512	64
AlphaServer GS80	256	65536	512	256
AlphaServer GS160	512	131072	512	512
AlphaServer GS320	1024	262144	1024	1024

TOY

CHARON-AXP maintains its time and date using the "toy" (time-of-year) component. In order to preserve the time and date while a virtual system is not running, the TOY component uses a binary file on the host system to store the date and time relevant data. The name of the file is specified by the “container” option of the "toy" component.

container

Parameter container

Type Text string

Value

Specifies a name for the file in which CHARON-AXP preserves the time and date during its “offline” period. This file also keeps some console parameters (such as the default boot device).

By default it is left unspecified.

Example:

set toy container="/Charon/my_virtual_system.dat"

It is recommended to specify the full path to the TOY file.

sync_to_host

Parameter sync_to_host

Type Text string

Value

Specifies whether and how the guest OS time is synchronized with the CHARON host time.

Syntax:

set TOY sync_to_host = "{as_vms | as_tru64 | as_is}"

Value description:

as_vms : If the guest OS is OpenVMS/AXP and its date and time must be set to the host's date and time each time it boots.
as_tru64 : If the guest OS is Tru64 UNIX and its date and time must be set to the host's date and time each time it boots.
as_is : If the TOY date and time must be set to the host's UTC date and time.

Example:

set TOY sync_to_host = "as_vms"

To synchronize the guest OS with TOY, use the following commands (from "SYSTEM"/"root" account):

on OpenVMS/AXP: $ set time
on Tru64 UNIX: # date -u `consvar -g date | cut -f 3 -d ' '`

The default value is "not specified" - it means that by default CHARON does not synchronize its guest OS time with the CHARON host time but collects date and time from the file specified with "container" parameter.

If "sync_to_host" parameter is specified there is no need to specify "container" parameter in addition.

The CHARON-AXP time zone may be different from that of the host system. Correct CHARON time relies on the correctness of the host system time to calculate the duration of any CHARON “offline” periods. (i.e. while the virtual system is not running). Every time CHARON comes on line it calculates a Delta time (the system time is used if there is no TOY file). Therefore, if the host system time is changed while CHARON is not running, the CHARON time may be incorrect when CHARON is restarted and the CHARON time must be set manually.

ROM

The System Flash ROM file conserves specific parameters between reboots.

container

Parameter container

Type Text string

Value

Specifies the name of a file in which CHARON-AXP stores an intermediate state of its Flash ROM. This state includes, for example, most of the console parameters.

By default it is left unspecified.

it is recommended to specify the full path to this file

Example:

set rom container="/Charon/my_virtual_system.rom"

system_name

Parameter system_name

Type Text string

Value

Allows changing the system name

Example:

set rom system_name="Alpha Server 1000 4/200"

Refer to Core Devices#Setting of a particular Alpha model to find an appropriate value of the Alpha system name per each Alpha model supported by CHARON-AXP

system_serial_number

Parameter system_serial_number

Type Text string

Value

Allows changing the system serial number

Example:

set rom system_serial_number = NY12345678

Any sequence of characters can be used as a serial number. Sequences longer than 16 characters are truncated.

Serial Numbers should be according to DEC standard: 10 characters. First two characters are capital letters, remaining 8 characters are decimal digits.

By default it is set to SN01234567

dsrdb

Parameter dsrdb[n]

Type Numeric

Value

DSRDB - Dynamic System Recognition Data Block. These parameters allow changing the emulated hardware model type.

dsrdb[0] stands for SMM - System Marketing Model.

Example:

set rom dsrdb[0]=1090

Core Devices#Setting of a particular Alpha model describes connection between "dsrdb" parameter and the rest of the parameters defining an exact Alpha model - including SMM.

version

Parameter version

Type Text string

Value

Sets Console and PAL code versions in the following way:

SRM Console version to X.Y-Z:
set rom version[0] = x.y-z
OpenVMS PAL code version to X.Y-Z:
set rom version[1] = x.y-z
Tru64 UNIX PAL code version to X.Y-Z:
set rom version[2] = x.y-z

Example:

set rom version[0] = 7.3-1 version[1] = 1.98-104 version[2] = 1.92-105

Virtual Alpha interval timer

The CHARON-AXP provides interval timer interrupts to virtual Alpha CPU(s) at frequency 100Hz (100 interrupts a second).

This is default behavior which may be changed through “clock_period” configuration parameter of virtual ISA or EISA bus, depending on emulated hardware model of virtual Alpha system.

Value of the parameter is interval timer period in microseconds. By default it is set to 10000. By changing it to 1000 frequency of virtual interval timer interrupts may be increased to 1000Hz (1000 interrupts per second).

Parameter

clock_period

Type

Numeric

Value

Specifies period of interval timer, in microseconds. Only two values are supported:

10000 (which corresponds to 100Hz interval timer)
1000 (which corresponds to 1000Hz interval timer)

By default it is set to 10000.

Example for AlphaServer 400, DS, ES, GS:

set ISA clock_period=1000

Example for AlphaServer 800, 1000, 1000A, 1200, 2000, 2100, 4000, 4100:

set EISA clock_period=1000

Higher interval timer frequency creates higher load for virtual Alpha CPU which may cause degradation of overall virtual system performance.

Setting of a particular Alpha model

It is important to have the "system_name", "hw_model", "cpu_architecture" and "dsrdb[n]" (DSRDB - Dynamic System Recognition Data Block) parameters in sync. (see above for details) to configure CHARON-AXP for emulation of a particular Alpha model.

The following tables illustrate how to synchronize those values:

AlphaStation 200 - 400

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_400	AlphaStation 200 4/100	EV4	1156
AlphaServer_400	AlphaStation 200 4/133	EV4	1088
AlphaServer_400	AlphaStation 205 4/133	EV4	1250
AlphaServer_400	AlphaStation 255 4/133	EV4	1257
AlphaServer_400	AlphaStation 200 4/166	EV4	1087
AlphaServer_400	AlphaStation 205 4/166	EV4	1251
AlphaServer_400	AlphaStation 255 4/166	EV4	1258
AlphaServer_400	AlphaStation 400 4/166	EV4	1086
AlphaServer_400	AlphaStation 205 4/200	EV4	1252
AlphaServer_400	AlphaStation 255 4/200	EV4	1259
AlphaServer_400	AlphaStation 200 4/233	EV45	1151
AlphaServer_400	AlphaStation 205 4/233	EV45	1253
AlphaServer_400	AlphaStation 255 4/233	EV45	1260
AlphaServer_400	AlphaStation 400 4/233	EV45	1152
AlphaServer_400	AlphaStation 205 4/266	EV45	1254
AlphaServer_400	AlphaStation 255 4/266	EV45	1261
AlphaServer_400	AlphaServer 300 4/266	EV45	1593
AlphaServer_400	AlphaStation 400 4/266	EV45	1153
AlphaServer_400	AlphaStation 400 4/266	EV45	1154
AlphaServer_400	AlphaStation 200 4/300	EV45	1157
AlphaServer_400	AlphaStation 205 4/300	EV45	1255
AlphaServer_400	AlphaStation 255 4/300	EV45	1262
AlphaServer_400	AlphaStation 400 4/300	EV45	1160
AlphaServer_400	AlphaStation 205 4/333	EV45	1256
AlphaServer_400	AlphaStation 255 4/333	EV45	1263

AlphaServer 600 - 800

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_800	AlphaServer 600 5/333	EV56	1310
AlphaServer_800	AlphaServer 800 5/333	EV56	1310
AlphaServer_800	AlphaServer 800 5/400	EV56	1584
AlphaServer_800	AlphaStation 600A 5/500	EV56	1590
AlphaServer_800	AlphaServer 800 5/500	EV56	1585

AlphaServer 1000

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_1000	AlphaServer 1000 4/200	EV4	1090
AlphaServer_1000	AlphaServer 1000 4/233	EV45	1091
AlphaServer_1000	AlphaServer 1000 4/266	EV45	1264

AlphaServer 1000A

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_1000A	AlphaServer 1000A 4/266	EV45	1265

AlphaServer 1200 and AlphaStation 1200

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_1200	AlphaServer 1200 5/300	EV5	1722
AlphaServer_1200	AlphaServer 1200 5/300	EV5	1724
AlphaServer_1200	AlphaServer 1200 5/400	EV56	1726
AlphaServer_1200	AlphaServer 1200 5/400	EV56	1728
AlphaServer_1200	AlphaStation 1200 5/400	EV56	1758
AlphaServer_1200	AlphaStation 1200 5/400	EV56	1760
AlphaServer_1200	AlphaServer 1200 5/466	EV56	1730
AlphaServer_1200	AlphaServer 1200 5/466	EV56	1732
AlphaServer_1200	AlphaStation 1200 5/466	EV56	1762
AlphaServer_1200	AlphaStation 1200 5/466	EV56	1764
AlphaServer_1200	AlphaServer 1200 5/533	EV56	1734
AlphaServer_1200	AlphaServer 1200 5/533	EV56	1736
AlphaServer_1200	AlphaServer 1200 5/533	EV56	1746
AlphaServer_1200	AlphaServer 1200 5/533	EV56	1748
AlphaServer_1200	AlphaStation 1200 5/533	EV56	1766
AlphaServer_1200	AlphaStation 1200 5/533	EV56	1768
AlphaServer_1200	AlphaStation 1200 5/533	EV56	1778
AlphaServer_1200	AlphaStation 1200 5/533	EV56	1780
AlphaServer_1200	AlphaServer 1200 5/600	EV56	1738
AlphaServer_1200	AlphaServer 1200 5/600	EV56	1740
AlphaServer_1200	AlphaServer 1200 5/600	EV56	1750
AlphaServer_1200	AlphaStation 1200 5/600	EV56	1752
AlphaServer_1200	AlphaStation 1200 5/600	EV56	1770
AlphaServer_1200	AlphaStation 1200 5/600	EV56	1772
AlphaServer_1200	AlphaStation 1200 5/600	EV56	1782
AlphaServer_1200	AlphaStation 1200 5/600	EV56	1784
AlphaServer_1200	AlphaServer 1200 5/666	EV56	1742
AlphaServer_1200	AlphaServer 1200 5/666	EV56	1744
AlphaServer_1200	AlphaServer 1200 5/666	EV56	1754
AlphaServer_1200	AlphaServer 1200 5/666	EV56	1756
AlphaServer_1200	AlphaStation 1200 5/666	EV56	1774
AlphaServer_1200	AlphaStation 1200 5/666	EV56	1776
AlphaServer_1200	AlphaStation 1200 5/666	EV56	1786
AlphaServer_1200	AlphaStation 1200 5/666	EV56	1788

AlphaServer 2000

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_2000	AlphaServer 2000 4/200	EV4	1123
AlphaServer_2000	AlphaServer 2000 4/233	EV45	1171
AlphaServer_2000	AlphaServer 2000 4/275	EV45	1127

AlphaServer 2100

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_2100	AlphaServer 2100 4/200	EV4	1059
AlphaServer_2100	AlphaServer 2100 4/200	EV4	1135
AlphaServer_2100	AlphaServer 2100 4/233	EV45	1179
AlphaServer_2100	AlphaServer 2100 4/233	EV45	1187
AlphaServer_2100	AlphaServer 2100 4/275	EV45	1115
AlphaServer_2100	AlphaServer 2100 4/275	EV45	1139

AlphaServer 4000

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1409
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1411
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1421
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1423
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1433
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1435
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1445
AlphaServer_4000	AlphaServer 4000 5/266	EV5	1447
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1413
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1415
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1425
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1427
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1437
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1439
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1449
AlphaServer_4000	AlphaServer 4000 5/300	EV5	1451
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1417
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1419
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1429
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1431
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1441
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1443
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1453
AlphaServer_4000	AlphaServer 4000 5/400	EV56	1455
AlphaServer_4000	AlphaServer 4000 5/466	EV56	1634
AlphaServer_4000	AlphaServer 4000 5/466	EV56	1636
AlphaServer_4000	AlphaServer 4000 5/466	EV56	1654
AlphaServer_4000	AlphaServer 4000 5/466	EV56	1656
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1638
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1640
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1642
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1644
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1658
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1660
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1662
AlphaServer_4000	AlphaServer 4000 5/533	EV56	1664
AlphaServer_4000	AlphaServer 4000 5/600	EV56	1646
AlphaServer_4000	AlphaServer 4000 5/600	EV56	1648
AlphaServer_4000	AlphaServer 4000 5/600	EV56	1666
AlphaServer_4000	AlphaServer 4000 5/600	EV56	1668
AlphaServer_4000	AlphaServer 4000 5/666	EV56	1650
AlphaServer_4000	AlphaServer 4000 5/666	EV56	1652
AlphaServer_4000	AlphaServer 4000 5/666	EV56	1670
AlphaServer_4000	AlphaServer 4000 5/666	EV56	1672

AlphaServer 4100

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1313
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1317
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1337
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1341
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1361
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1365
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1385
AlphaServer_4100	AlphaServer 4100 5/266	EV5	1389
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1321
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1325
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1345
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1349
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1369
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1373
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1393
AlphaServer_4100	AlphaServer 4100 5/300	EV5	1397
AlphaServer_4100	AlphaServer 4100 5/400	EV56	1329
AlphaServer_4100	AlphaServer 4100 5/400	EV56	1333
AlphaServer_4100	AlphaServer 4000 5/400	EV56	1353
AlphaServer_4100	AlphaServer 4000 5/400	EV56	1357
AlphaServer_4100	AlphaServer 4000 5/400	EV56	1377
AlphaServer_4100	AlphaServer 4100 5/400	EV56	1381
AlphaServer_4100	AlphaServer 4100 5/400	EV56	1401
AlphaServer_4100	AlphaServer 4100 5/400	EV56	1405
AlphaServer_4100	AlphaServer 4100 5/466	EV56	1594
AlphaServer_4100	AlphaServer 4100 5/466	EV56	1598
AlphaServer_4100	AlphaServer 4100 5/533	EV56	1602
AlphaServer_4100	AlphaServer 4100 5/533	EV56	1606
AlphaServer_4100	AlphaServer 4100 5/533	EV56	1610
AlphaServer_4100	AlphaServer 4100 5/533	EV56	1614
AlphaServer_4100	AlphaServer 4100 5/600	EV56	1618
AlphaServer_4100	AlphaServer 4100 5/600	EV56	1622
AlphaServer_4100	AlphaServer 4100 5/666	EV56	1626
AlphaServer_4100	AlphaServer 4100 5/666	EV56	1630

AlphaServer/AlphaStation DS10 and AlphaServer DS10L

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_DS10	AlphaServer DS10 6/466	EV6	1839
AlphaServer_DS10	AlphaStation DS10 6/466	EV6	1879
AlphaServer_DS10	AlphaStation XP900 6/466	EV6	1879
AlphaServer_DS10L	AlphaServer DS10L 6/466	EV6	1961
AlphaServer_DS10L	AlphaServer DS10L 67/616	EV67	1962
AlphaServer_DS10	AlphaStation DS10 67/616	EV67	1962
AlphaServer_DS10	AlphaServer DS10 67/616	EV67	1970

AlphaServer DS15 and AlphaStation DS15

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_DS15	AlphaServer DS15 68CB/1000	EV68	2047
AlphaServer_DS15	AlphaStation DS15 68CB/1000	EV68	2048
AlphaServer_DS15	AlphaServer TS15 68CB/1000	EV68	2049

AlphaServer DS20 and AlphaStation DS20

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_DS20	AlphaServer DS20 6/500	EV6	1838
AlphaServer_DS20	AlphaServer DS20E 6/500	EV6	1840
AlphaServer_DS20	AlphaServer DS20 6/500	EV6	1920
AlphaServer_DS20	AlphaServer DS20 6/500	EV6	1921
AlphaServer_DS20	AlphaServer DS20E 67/667	EV67	1939
AlphaServer_DS20	AlphaStation DS20E 6/500	EV6	1941
AlphaServer_DS20	AlphaStation DS20E 67/667	EV57	1943
AlphaServer_DS20	AlphaServer DS20E 68A/833	EV68	1964
AlphaServer_DS20	AlphaServer DS20E 68A/833	EV68	1982
AlphaServer_DS20	AlphaServer DS20L 68A/833	EV68	2006

AlphaServer DS25 and AlphaStation DS25

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_DS25	AlphaServer DS25 68CB/1000	EV68	1994
AlphaServer_DS25	AlphaStation DS25 68CB/1000	EV68	1995

AlphaServer ES40 and AlphaStation ES40

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_ES40	AlphaServer ES40 6/500	EV6	1813
AlphaServer_ES40	AlphaServer ES40 6/500	EV6	1861
AlphaServer_ES40	AlphaServer ES40 6/500	EV6	1869
AlphaServer_ES40	AlphaServer ES40 6/500	EV6	1923
AlphaServer_ES40	AlphaServer ES40 6/500	EV6	1931
AlphaServer_ES40	AlphaServer ES40 6/667	EV6	1817
AlphaServer_ES40	AlphaServer ES40 6/667	EV6	1865
AlphaServer_ES40	AlphaServer ES40 6/667	EV6	1873
AlphaServer_ES40	AlphaServer ES40 6/667	EV6	1927
AlphaServer_ES40	AlphaServer ES40 6/667	EV6	1935
AlphaServer_ES40	AlphaStation ES40 67/667	EV67	1949
AlphaServer_ES40	AlphaStation ES40 67/667	EV67	1957
AlphaServer_ES40	AlphaStation ES40 68/833	EV68	1984
AlphaServer_ES40	AlphaStation ES40 68/833	EV68	1988

AlphaServer ES45

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=
AlphaServer_ES45	AlphaServer ES45/3B 68CB/1000	EV68	1971
AlphaServer_ES45	AlphaServer ES45/2 68CB/1000	EV68	1975
AlphaServer_ES45	AlphaServer ES45/2B 68CB/1000	EV68	1975
AlphaServer_ES45	AlphaServer ES45/1B 68CB/1000	EV68	2002
AlphaServer_ES45	AlphaServer ES45/3B 68CB/1250	EV68	2013
AlphaServer_ES45	AlphaServer ES45/2 68CB/1250	EV68	2017
AlphaServer_ES45	AlphaServer ES45/2B 68CB/1250	EV68	2017
AlphaServer_ES45	AlphaServer ES45/1B 68CB/1250	EV68	2021

AlphaServer GS80

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=	set rom dsrdb[1]=	set rom dsrdb[4]=
AlphaServer_GS80	AlphaServer GS80 67/728	EV67	1967
AlphaServer_GS80	AlphaServer GS1280	EV67	2038	50	3050

AlphaServer GS160

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=	set rom dsrdb[1]=	set rom dsrdb[4]=
AlphaServer_GS160	AlphaServer GS160 67/728	EV67	1968
AlphaServer_GS160	AlphaServer GS1280	EV67	2039	50	3050

AlphaServer GS320

set session hw_model=	set rom system_name=	set ace cpu_architecture=	set rom dsrdb[0]=	set rom dsrdb[1]=	set rom dsrdb[4]=
AlphaServer_GS320	AlphaServer GS320 67/728	EV67	1969
AlphaServer_GS320	AlphaServer GS1280	EV67	2040	50	3050

Auto Boot

CHARON-AXP systems can be configured to boot the operating system automatically at start up.

auto_action restart

Parameter auto_action restart

Type Text string

Value

Determines whether CHARON-AXP boots automatically if the correct boot flags are set (and saved in the Alpha console files).

Example:

>>>set bootdef_dev dka0>>>set auto_action restart

Setting System Marketing Model (SMM)

CHARON-AXP allows to set an exact System Marketing Model (SMM) for a given model of Alpha, for example:

set rom dsrdb[0]=1090

Refer to Core Devices#Setting of a particular Alpha model to find allowed values of SMM per each Alpha model supported by CHARON-AXP.

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