AMPERIF CACHE DISC PACK

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP94T00858R000600870001-8
• Release Decision: RIFPUB
• Original Classification: K
• Document Page Count: 8
• Document Creation Date: December 28, 2016
• Document Release Date: February 12, 2008
• Sequence Number: 1
• Publication Date: April 13, 1983
• Content Type: REPORT

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DATA CENTER OPERATIONS BRANCH
NDS OPERATIONS PROCEDURE MANUAL SYSTEMS SW & HW
SYMBOLIC TITLE:
ORIGINATOR:
13 April 1983
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PAGE
1.1 Scope . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 UPS Power-UP . . . . . . . . . . . . . . . . . . . . 1-1
1.3 Amperif Cache Disk Power-Up Procedure . . . . . . . 1-1
1.4 Resetting the Cache Disk System Without Data. . . . 1-2
Restore
1.5 Resetting the Cache Disk System With Data . . . . . 1-3
Restore
1.6 Power Failure . . . . . . . . . . . . . . . . . . . 1-5
1.7 Manual Power Down . . . . . . . . . . . . . . . . . 1-5
1.7.1 Power Down With Out Data Copy . . . . . . . . . . . 1-5
1.7.2 Power Down With Data Copy . . . . . . . . . . . . . 1-6
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December 7, 1981
DATA SYSTEMS OPERATIONS BRANCH
OPERATOR PROCEDURES
AMPERIF CACHE DISK SUBSYSTEM
DCOB Procedure
No. 1-3
1.1 Scope
This document provides the operating procedures for the Amperif Cache
Disk System. Additional information regarding the system may be found in the
Amperif Cache Disk System "Operator Manual" and "Programmer Manual".
1.2 UPS Power-UP
From the control panel located on the front of each cabinet power-up the
a. Turn the AC INPUT and DC INPUT circuit breaker switches ON
b. Set UPS MODE switch to OUTPUT
c. Flip MANUAL BY PASS toggle switch
At this point the UPS should be operational with the UTIL ON and BY PASS ON
lights illuminated. Before proceeding on with the Amperif Power-up procedure
wait for approximately 10 seconds or until the UPS AC volt meter registers 115
volts and the DC volt meter registers 96 volts.
1.3 Amperif Cache Disk Power-Up Procedure
The Amperif system is a dual channel configuration consisting of three
cabinets. The cabinet to the left of the center cabinet is termed the "A"
channel, the one on the right is termed the "B" channel. The center or
main control cabinet controls and interfaces with both channels. To power up the
Amperif cabinets and associated disk drives:
a. Assure the UPS is in BY PASS mode.
b. Load disk packs and power-up applicable disk drives. Refer
to appropriate operational procedures for drive assignments
and vendor.disk drive manuals for start-up procedures. Place
all drives in "WRITE PROTECT" mode.
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c. Turn on or assure the Data copy device is ON. The switch is
located in the rear of the center cabinet an the data copy
device. The device is in the lower portion of the cabinet.
d. At the power control panel located at the top back of the
center cabinet, turn the BLWR, CU and CACHE switches ON.
The BLWR switch should always be turned on prior to
applying power to CU and CACHE.
e. At the power control panel of "A" and "B" CHANNEL cabinet
(located at the top back of the cabinet) turn the BLWR and
CU switches ON.
1.4 Resetting the Cache Disk System Without Data Restore
The following steps provide the procedures to reset the System after a
normal power-down when the disk drives were in a by-pass mode. Paragraph 1.5
provides procedures for powering up the system after a power failure.
a. Verify/or set the four CACHE PREP ENABLE switches to the OFF
(down) position. These switches are located on the front of
the "A" and "B" Channel Cabinets.
b. Verify that the Data Copy drive is READY. The device is ready
when the READY light comes on. The light is located on the
front of the data copy drive.
c. When the Data Copy drive is ready, on the UPS unit TRIP the
UPS OUTPUT toggle switch.
d. On the Amperif control panel set the CHANNEL ENABLE switch
to BOTH.
e. Sete CHANNEL DISPLAY SELECT switch to A.
f. On the control panel keypad depress PRO(M and S. Verify that
the message "INITIALIZE CACHE, ARE YOU SURE?" appears on the
display. Depress YES, then the RESET key. The message
"CHANNEL READY" will appear on the ccrisplay.
g. Set the CHANNEL DISPLAY SELECT switch to B and repeat step "f".
above for tie "B" cannel.
h. Depress BYPASS and ALL on the keypad. The character displayed
on the display unit represents the status between the AMPERIF
system and the disk drives. At this time the display should
contain all "Bs" (Bypass) for disk drives on line. If not "Bs"
repeat step "h".
i. Before proceeding on assure that all disk drives are ON,
LOADED and IN WRITE PROTECT mode.
j. To initialize the Data Copy feature, depress ILD and C on
the keypad and follow the Data Copy procedures as display
on the control panel.
k. Place all disk drives IN WRITE/READ mode.
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1. Set the disk drives to the DESIRED mode via the keypad.
Depress CACHE followed by ALL or by the drives Logical
Unit number. The same can be done for Write Thru (W's)
or Bypass (B's) modes. To check the status of the drives
DEPRESS DISP PRS (Present Status) on the KEYPAD.
m. Set "Time of Day" via the keypad. The system time is set
based on a 24 hour clock, therefore 12:30 am is 0030, 2 am
is 0200 and 2 pm is 1400 etc. To load the clock depress
LOAD followed by 0 on the keypad. When the display appears
keyin the time HHMMSS, where HH is hour(s), MM minute(s)
and SS is second(s). Depress the ENTER key.
To verify that the correct time has been entered,
depress DISP followed by 0 on the keypad. The current
time will appear on the display unit. If the time is
incorrect repeat step "M".
n. Depress LOAD and 8 to 'set the control panel to Monitoring
Level Clearance. This lockes the system to preclude un-
authorized access to the control unit. To change
security status check with the Shift Supervisor or the
Senior Operator.
step "f" above for t e "B" c annel.
The Cache Disk System is now ready for normal operations.
1.5 Resetting the Cache Disk System With Data Restore
The following are the procedures to reset the Cache Disk System after
a power failure.
a. Verify/or set the four CACHE PREP ENABLE switches
to the OFF (down) position.
b. Verify that the Data Copy drive is READY. The device
is ready when the READY light comes on. The light is
located on the front of the data copy drive.
c. When the Data Copy drive is ready, on the UPS unit trip
the UPS OUTPUT toggle switch.
d. On the Amperif control panel set the CHANNEL ENABLE
switch to BOTH.
e. Set the CHANNEL DISPLAY SELECT switch to A.
f. Depress PROGM and 5 on the keyp'ad. Verify that the
message "INITIALIZE CACHE, ARE YOU SURE?" appears on
the display. Depress YES, then the RESET key. The
message "CHANNEL READY" will appear on the display.
g. Set the CHANNEL DISPLAY SELECT switch to B and repeat
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h. Depress BYPASS and ALL on the keypad. The character
displayed on the display unit represents the status
between the AMPERIF system and the disk drives. At
this time the display should contain all "Bs" (Bypass)
for disk drives on line. If not "Bs" repeat step "h".
i Before proceeding on assure that all disk drives are ON,
LOADED and IN WRITE PROTECT mode.
j. To restore data to Cache from the Data Restore Drive
depress ILD followed by B on the keypad and follow the
restore procedures as directed by the control panel
messages.
k. Place all disk drives in WRITE/READ mode.
1. On the keypad depress CACHE followed by ALL. Verify
on the display that all applicable disks are CACHE mode.
If not in CACHE mode perform step "1" over.
m. On the keypad depress BYPASS followed by ALL. Verify
on the display that all applicable disk drives are in
BYPASS mode, if not perform step "m" over.
n. On the Amperif control panel set the CHANNEL ENABLE
switch to BOTH.
o. Se the CHANNEL DISPLAY SELECT switch to A.
p. Depress PROGM and 5 on the keypad. Verify that the
message "INITIALIZE CACHE, ARE YOU SURE?" appears
on the display. Depress YES, then the RESET key.
The message "CHANNEL READY" will appear on the display.
q. Set the CHANNEL DISPLAY SELECT switch to B and repeat
step "p" above for the "B" channel.
r. Initialize Data Copy unit, depress on the keypad ILD
followed by C and follow the procedure displayed on
the control panel.
s. Return all disk drives to WRITE/READ mode.
t. Set the disk drives to the DESIRED mode via the keypad.
Depress CACHE followed by ALL (or by the Drive's Logical
Unit number . The same can be done for Write Thru (Ws)
or Bypass (B) modes. To check the status of the drives
DISP PRS (Present Status).
u. Set "Time of Day" via the keypad. The system time is set
based on a 24 hour clock, therefore 12:30 am is 0030, 2 am
is 0200 and 2 pm is 1400 etc. To load the clock depress
LOAD followed by 0 on the keypad. When the display appears
keyin the time HHMMSS, where HH is hour(s), MM minute(s)
and SS is second(s). - Depress the ENTER key.
v. Depress LOAD and 8 to set the control panel to Monitoring
Level Clearance.. This locks the system precluding un-
authorized access to the control unit. To change
security status check with the Shift Supervisor or the
Operations Technician.
The Cache Disk System is now ready for normal Operations.
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1.6 Power Failure
The CACHE Disk System has the capability save all CACHE and System Data on
the Data Copy Drive pending power loss. Three Data Copy Lights are provided to
monitor the data copy procedure. These are located in a small box that is
installed on top of the control unit. The first light, the yellow POWER FAIL
light, denotes that power has been lost, and the system is running off the battery.
If power is restored within one minute, this light will go off and the system
returns to normal operation. If power is lost for more than one minute, the
Cache Disk System assumes that power may not be restored before the battery is
exhausted and it is necessary to save all Cache and system data on disk to
prepare for complete power loss. The second light, the green DATA COPY light,
denotes when this procedure is in process. This takes only a few seconds. The
third light, the red SHUT DOWN AUTH light, denotes when data copy is complete, and
the system is prepared for complete power loss. The system may now be powered
down safely.
When powering up after a power failure, all Cache data may be restored to the
pre-power failure state. This is done by doing a Data Restore (the ILD-B function)
after the cabinets have been reset and the drives are powered up.
1.7 Manual Power Down
The following step apply when manually powering down the entire Cache
Disk System. To perform these steps the computer must be disabled or inactive
before starting these procedures.
1.7.1 Power Down With Out Data Copy
Power down w/o data copy is used when the status of all disk drives is
BYPASS.
a. Depress BYPASS and ALL on the control panel keypad.
The status of the disk drives will be display on the
control panel. All applicable disk drives should be
represented with a "B" (bypass). If not perform the
step over.
b. Place all disk drives in WRITE PROTECT mode.
c. At the power control panel located in the top back of the
two side cabinets turn OFF the CU and BLWR switches.
d. Turn OFF the CU, CACHE, BLWR and 'the DATA COPY drive
switches in the main control cabinet. The switches are
located at rear top and bottom of the center cabinet.
e. On the UPS set the MODE SWITCH to OFF and turn the
AC INPUT and DC INPUT switches OFF.
f. If desired the disk drive units may be powered down.
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1.7.2 Power Down With Data Copy
These procedures are used if the status of the disk drive are CACHE or
WRITE THRU. The computer must be disabled or inactive, before starting the
power down procedures.
a. Place all disk drives into WRITE PROTECT mode.
b. On the control panel depress ILD followed by C.
Answer YES to the message on the control panel. This
will copy the CACE-IE to the data copy device.
c. At this point ALL the data in CACHE is on the Data Copy
Drive. Place tie Data Copy Drive in WRITE PROTECT.
SYSTEM is now ready to be power down.
d. At the power control panel located in the top back
of the two side cabinets turn OFF the CU and'BLWR switches.
e. Turn OFF the CU, CACHE, BLWR anc~the DATA COPY drive
switc es in tie may cn ontrol cabinet.---Me itches are
located at rear top and bottom of the center cabinet.
f. On the UPS set the MODE SWITCH to OFF and turn the AC'INPUT
and DC INPUT switches OFF
g. If desi red the disk drive units may be powered down.
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