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Conference koolit::vms_curriculum

Title:VMS Curriculum
Moderator:SUPER::MARSH
Created:Thu Nov 01 1990
Last Modified:Sun Aug 25 1996
Last Successful Update:Fri Jun 06 1997
Number of topics:185
Total number of notes:2026

80.0. "SYSNET II -- Managing Disks" by SUPER::REGNELL (Smile!--Payback is a MOTHER!) Tue Mar 19 1991 17:44

    
T.RTitleUserPersonal
Name
DateLines
80.1SYSNET II -- Managing DisksSUPER::WTHOMASWed Jun 12 1991 14:2610
    
    	A draft of the seventh Sysnet II chapter entitled:
    		
    		Maintaining Disks
    
    	   is available for review in:
    
    	SUPER::ES$REVIEW:[SYSNET_II]SYSNETII_CHAP7.PS
    
    			Wendy
80.2Several double text entries & typosCRISPY::SHONEKKeith Shone UK Edu 830-4074Thu Jun 13 1991 10:2947
    Omissions 	- prefixed [O]
    Nits	- prefixed [N]
    Repeat	- prefixed [R]
    Typos 	- prefixed [T] 
    
    Rather a lot of repeated text with occurrences mostly on student
    pages.
    
    Page	Comment
    -------------------
    7-4		[T] Bullet 3: Descibe -> Describe
    
    7-7		[N] 6 lines from foot: "one time" -> once
    
    7-14a	[O] Line 3: sentence dies in mid-flight
    		[T] Line 18: bold text repeats with addition of 
    		      	     "third-party"
    
    7-14	[T] Line 3: something gone wrong with this paragraph
    		    Line 5: repeats the first paragraph
    		[O] Bullet 1, sub-bullet 4: sentence dies before end ")"
    
    7-15	[R] Line 3: repeats line 2 in plain font
    
    		    Bullet 1, sub-bullet 2: Figure 7-1 - where? It's
    		    a long way away...
    
    		[R] Bullet 1, sub-bullet 3: repeated sentence 
    		    "In Figure 7-1,..."
    
    		[R] Last sub-bullet: repeat of previous bullet
    
    7-16	[R] Line 6: a repeat of line 5
    	
    		[R] Last two bullets repeat previous pair of bullets
    
    7-17	[R] Final section of text is a repetition of the
    		    command SHOW DEVICE. Could this be simplified?
    
    7-18	[T] Final line: sine -> since
    
    7-21	[T] 5 lines from foot: informatio -> information
    
    		[T] 4 lines from foot: dismunt -> dismount
    
    7-22a	[R] Line following bullet 11: is this sentence correct?
    		    If all disks are dual-ported then note them all!
80.3|Comments from DC training centerTEACH::WENDYMon Jun 17 1991 00:41177
                               Module 7
                     Maintaining Disks

7-6  If the CHapter is called Maintaining disks why does the
first page start out with Printers and plotters???

7-7 Disk Drives often called auxillary memory. (*Ive always
heard them called auxillary storage.)

7-13 Wouldnt or Shouldnt we have learned device names sooner, like
when we teach them about file specs
                   NODE::DEVICE:[DIRECTORY]FILENAME.TYPE;VERSION

7-14 First couple sentences at the top of the page are goofed up.



.these disks include
     -ISE disks in a mixed interconnect cluster.
               *(They will have no idea what DSSI or ISE at this point)
     -I don't think we should mention MSCP here since we havent discussed
clusters at all. They havent even seen cluster_config an its mentioned here.

7-15 I really think allocation classes should be saved until we talk about
clustering. Also your mentioning LION$DUA0 and Figure 7-1. Where is thos figure?
Nevermind I found it on page 7-22, but thats sort of far to look when we are
on page 7-15 here.

7-20 This was in correct in the Cluster student guide and its inncorrect here.
*(Please see the examples I have included from our cluster at the end of this
reply.

7-21 Your mentioning $show device/files in a cluster from SYSMAN maybe show
them how to set their enviornment and do this.

                 Typo's  inforatio:-->information
 
                         dismunt-->dismount
7-22 This is for figure 7-1, dealing with allocation classes. Please put
this with the cluster related topics.
 


                           These commands are all done
                           from Splash which is a CI node
                           in our cluster.



Username: WENDY
Password: 
    Last interactive login on Thursday, 13-JUN-1991 15:31
    Last non-interactive login on Thursday, 13-JUN-1991 13:13
$ show dev d

Device                  Device           Error    Volume         Free  Trans Mnt
 Name                   Status           Count     Label        Blocks Count Cnt
$255$DJA0:     (SWISH)  Online               0
$255$DUA1:     (SWISH)  ShadowSetMember      0  (member of $255$DUS1:)
$255$DUA2:     (SWISH)  Mounted              0  INSTRUCTOR       43419     3   5
$255$DUA3:     (SWISH)  Mounted              0  STUDENT1        284259    13   5
$255$DUA4:     (SWISH)  Mounted              0  OADISK          470841    12   5
$255$DUA5:     (SWISH)  Mounted              0  VIA             193689    26   5
$255$DUA6:     (SWISH)  Online               0
$255$DUS1:     (SWISH)  Mounted              0  VAXVMSV50        65787   445   5


$ show dev $255$dua3/full

Disk $255$DUA3: (SWISH), device type RA81, is online, mounted, file-oriented
    device, shareable, served to cluster via MSCP Server, error logging is
    enabled.

    Error count                    0    Operations completed             140760
    Owner process                 ""    Owner UIC                         [1,1]
    Owner process ID        00000000    Dev Prot    S:RWED,O:RWED,G:RWED,W:RWED
    Reference count               13    Default buffer size                 512
    Total blocks              891072    Sectors per track                    51
    Total cylinders             1248    Tracks per cylinder                  14
    Host name                "SWISH"    Host type, avail              HS50, yes
    Alternate host name     "WHOOSH"    Alt. type, avail              HS50, yes
    Allocation class             255

    Volume label          "STUDENT1"    Relative volume number                0
    Cluster size                   3    Transaction count                    13
    Free blocks               284064    Maximum files allowed            111384
    Extend quantity                5    Mount count                           5
    Mount status              System    Cache name        "_$255$DUS1:XQPCACHE"
    Extent cache size             64    Maximum blocks in extent cache    28406
    File ID cache size            64    Blocks currently in extent cache  16617
    Quota cache size               0    Maximum buffers in FCP cache       2159

  Volume status:  subject to mount verification, write-through caching enabled.
  Volume is also mounted on CHIRP, POOF, BAROOM, QUACK.



                         When this command is issued from a
                         CI node it comes up served to the
                         cluster va MSCP server not available
                         to the cluster which the diagram in
                         the book hows. Maybe it shows up
                         available on the CI node if its striclty
                         a CI cluster, but ours here in DC is
                         mixed interconnect so I can't check that.





                          These Commands are all from Chirp
                         which is a satellite node, it boots
                         from Splash (boot server.)
$ set host chirp

Username: WENDYPassword: 
    Last interactive login on Thursday, 13-JUN-1991 15:32
    Last non-interactive login on Thursday, 13-JUN-1991 13:13
$ show dev/full $255$dua3

Disk $255$DUA3: (SPLASH), device type RA81, is online, mounted, file-oriented
    device, shareable, available to cluster, error logging is enabled.

    Error count                    0    Operations completed               6877
    Owner process                 ""    Owner UIC                         [1,1]
    Owner process ID        00000000    Dev Prot    S:RWED,O:RWED,G:RWED,W:RWED
    Reference count                9    Default buffer size                 512
    Total blocks              891072    Sectors per track                    51
    Total cylinders             1248    Tracks per cylinder                  14
    Host name               "SPLASH"    Host type, avail          VAX 8800, yes
    Alternate host name      "QUACK"    Alt. type, avail          VAX 8350, yes
    Allocation class             255

    Volume label          "STUDENT1"    Relative volume number                0
    Cluster size                   3    Transaction count                    10
    Free blocks               284307    Maximum files allowed            111384
    Extend quantity                5    Mount count                           5
    Mount status              System    Cache name        "_$255$DUS1:XQPCACHE"
    Extent cache size             64    Maximum blocks in extent cache    28430
    File ID cache size             8    Blocks currently in extent cache    720
    Quota cache size              29    Maximum buffers in FCP cache         42

  Volume status:  subject to mount verification, write-through caching enabled.
  Volume is also mounted on POOF, BAROOM, QUACK, SPLASH.



                          Notice on the satellite it says available to
                          the cluster and the disk server shows up as 
                          host (splash), not the HSC like your diagram
                          shows.          
                
$ show dev d

Device                  Device           Error    Volume         Free  Trans Mnt
 Name                   Status           Count     Label        Blocks Count Cnt
CHIRP$DUA0:             Online               0
$255$DJA0:     (QUACK)  Online               0
$255$DUA1:     (QUACK)  Online               0  (remote shadow member)      
$255$DUA2:    (SPLASH)  Mounted              0  INSTRUCTOR       43407    19   5
$255$DUA3:    (SPLASH)  Mounted              0  STUDENT1        284325    10   5
$255$DUA4:    (SPLASH)  Mounted              0  OADISK          470841     1   5
$255$DUA5:    (BAROOM)  Mounted              0  VIA             193404     2   5
$255$DUA6:     (QUACK)  Online               0
$255$DUS1:     (QUACK)  Mounted              0  VAXVMSV50        73068   205   5



Your display is obviously done from Bailey which is a CI node in a mixed inter
connect cluster.  So the display should look like the one I did above on 
Splash a CI node in our mixed interconnect cluster.




Wendy Mullenhoff
80.4SUPER::WTHOMASMon Jul 01 1991 18:027
    
    	The two week time period for reviews is over.
    
        Any comments entered after this note aill be considered, time
    permitting.
    
    			Wendy
80.5Capitol IdeasTEACH::LYNNSun Jul 07 1991 02:0666
	Maintaining Disks
	Chapter 7

Objectives - You include 6 pages of information for passwords yet
	it is not listed as an objective.  I personally think that
	it should be an objective.

7-13	I hope this is removed from SYSNET I.

7-14a	The first paragraph needs to be rewritten.
	State what FAL and DFS stand for.
	Last paragraph "For the disk to be served correctly: "
	is written twice.

7-14	What is this?

7-14	Rewrite the first paragraph please.
	Maybe on this page state the possible values for
	the system parameters MSCP_LOAD and MSCP_SERVE_ALL.

7-15	Under the first bullet you refer Figure 7-1. There has not
	been a figure 7-1 so far. Doesn't the first dash and the
	third dash say the same thing. "single node" vs "only one node"

	Under the second bullet the second dash and the fifth dash
	are redundant also.

	The last two dashes are redundant.
	suggestion - On the instructor's page define:
	dual-ported, dual-pathed and dual-hosted.

7-16	First line repeats itself.
	A drawing would be nice for this information.

7-17	The last dash under the third bullet.
	What do you mean?
	Maybe you are saying To find all open files on a disk in a cluster
	environment use SYSMAN and set your environment to cluster and then
	issue the SHOW DEVICE/FILES command. See comment 7-21.

7-18	Is this display 100% correct in regards to a CI cluster?
	I do like the practical list of questions after the example.

7-19	Second bullet - Not in line with the output from the command.

7-20	Second  bullet - Not in line with the output from the command.

7-21	After the example information is spelled incorrectly.
	At the first bullet dismount is spelled incorrectly.
	Give an example of using SYSMAN to see all nodes in a cluster.
	
	$SET DEFAULT SYS$SYSTEM
	$SET PROCESS/PRIVILEGE=SYSPRV
	$RUN SYSMAN
	SYSMAN>SET ENVIRONMENT/CLUSTER
	SYSMAN>SHOW DEVICE/FILES

	then display the output


Do you want to cover everything about allocation classes in this chapter?
It could be completed  by going over how to set the value on the HSC and on
the VAX.

Lynn White
Washington D.C.
80.6First teach post mortemMELKOR::SWIERKOWSKISMon Jan 20 1992 14:2525
This reply is limited to technical errors only.  I'll refrain from making
comments one way or the other about content, style, etc....

Module 1 (Managing Disks) in SYSNET II

p. 1-17		They need OPER privilege as well as SYSPRV (OPER allows
		access to the SYSMAN Utility and SYSPRV allows access to
		the files on the the disks).  Example 1-5 should read 
		as follows:

		$ SET PROCESS/PRIVILEGE=(OPER,SYSPRV)
		$ RUN SYS$SYSTEM:SYSMAN
		SYSMAN> SET ENVIRONMENT/CLUSTER
		SYSMAN> DO SHOW DEVICES/FILES $2$DUA0



p. 1-23		Similar problem as above.  In the comment section for Step 1 in 
		Table 1-2, if they are not logged into the SYSTEM account, 
		they will need SYSPRV as well as OPER.  SYSPRV here will allows 
		the creation of QUOTA.SYS under the MFD.



				Susan
80.7/device= in sysman> diskquota needed???TEACH::CHUCKTue Mar 24 1992 19:3727
    Page 1-27.  Step 3 points to the device disk$user.  The book says
    
    	subsequent commands need not point to the disk.  I have not
    	
    	nor can I test this for the command at step 3.  I have done
    
    	adds, removes and modifies and each subsequent command needs
    
    	to be told which disk to do it to or it will do it on the disk
    
    	you are on.  I think the book is wrong when it says " Note that
   
    	the /DEVICE+DISK$USER qualifier need not be specified, as the
    
    	qualifier was properly specified in step 3."
    
    
    		In the old days using diskquota and not sysman we could
    
    	say "use" for a device and it would always point to it.  I do
    
    	not believe SYSMAN does this.  If someone out there could prove
    
    	this it would be great.
    
    	Chuck
       
80.8SUPER::MATTHEWSThu Mar 26 1992 14:397
   Chuck, you're right. We'll have to fix this next time around. 
   
   You can either keep using the /DEVICE qualifier, or use SET
   PROFILE/DEFAULT=device-name to do what USE did in the DISKQUOTA utility.
   Anyone have a preference for one or the other?
   
   					Val
80.9Both!SOAEDS::TRAYSERSeniority means a bigger shovel!Thu Mar 26 1992 19:258
  If I am performing MANY functions I do a SET PROF command, if its just
  one then I use the /DEV command.
  
  Kinda like "Do you SET DEFAULT to edit one file in another directory or
  just use the full file spec to get there?"  For one file, I use the full
  file spec, for multiple files I set default.
  
  $