CONTACTS
SUBJECTS
Hitachi Answered Questions Store-it 500 GB Hard Drive Evaluation For
1003 -
1003 - ..
1004 - Summary/Objective
1005 -
100501 - Follow up ref SDS 12 0000. ref SDS 10 0000.
100502 -
100503 - Received helpful feedback from Hitachi today. ref SDS 0 649K
100504 - Implemented suggestion on formatting to NTFS standards. ref SDS 0 427J
100505 - Developed bk.cmd to use xcopy for monthly backups transferring files
100506 - to the Hitachi hard drive, ref SDS 0 5M6O, and then resets attribute.
100507 - ref SDS 0 V48J Developed macro file 02908 to modify bk.cmd to create
100508 - a temporary batch command file, bk1.cmd. ref SDS 0 OS8K Evaluation
100509 - indicates significant improvement. ref SDS 0 3M3F
100510 -
100511 - [On 070319 letter to Hitachi commends Paul's work and Hitachi
100512 - customer support services for contributing to backup
100513 - efficiency, essential for Knowledge Management practices that
100514 - save lives, time, and money. ref SDS 14 7D9I
100516 - ..
100517 - [On 070504 converted interim daily backup to use xcopy.
100518 - ref SDS 15 M65O
100519 -
100520 -
100521 -
100522 -
100524 - ..
1006 -
1007 -
1008 - Progress
1009 -
100901 - Received ref DRT 1 0001 dated 070313 from Paul at Hitachi responding
100902 - to the letter, ref DIP 1 0001, submitted in the record yesterday,
100903 - ref SDS 12 IE5L, and presenting several questions developed initially
100904 - on 070312. ref SDS 10 FM6J
100906 - ..
100907 - Paul says in his letter...
100908 -
100909 - 1. Since you are using an operating system capable of supporting
100910 - the NTFS file system I would consider re-partitioning it
100911 - (back-up your data first) and formatting it using the NTFS file
100912 - system. XP handles this file system a lot more efficiently.
100913 - Use the XP disk management console to accomplish this task.
100914 - ref DRT 1 0001
100916 - ..
100917 - This addresses the question on 070312. ref SDS 10 WQ5N Feedback to
100918 - Hitachi should suggest that customer support cite the original source
100919 - for context. For example in this case, Paul might have said...
100920 -
100921 - Dear Customer,
100922 -
100923 - Your letter on 070313, ref DIP 1 0001, references a record
100924 - on 070312 that presents technical support issues. Line
100925 - 081028 in the record asks a question about deploying the
100926 - Hitachi 500 GB hard drive for efficient use of space
100927 - configured with the Microsoft XP operating system.
100928 - ref SDS 10 WQ5N
100930 - ..
100931 - Providing context with links to original sources helps orient Hitachi
100932 - analysis, ideas, and recommendations for efficient, accurate use, as
100933 - explained in NWO - see situational awareness. ref OF 18 08XX
100935 - ..
100936 - Based on Paul's explanation, went ahead and formatted the new drive to
100937 - NTFS with 512 byte cluters.
100939 - ..
100940 - This seems to increase both speed of data transfer, and storage
100941 - capacity, as shown under evaluation below. ref SDS 0 3M3F
100942 -
100943 - [On 070319 letter to Hitachi commends Paul's work and Hitachi
100944 - customer support services for contributing to backup
100945 - efficiency, essential for Knowledge Management practices to
100946 - save lives, time, and money. ref SDS 14 7D9I
100948 - ..
100949 - Called and talked to Gary at Boeing. He feels there is no downside to
100950 - using the smaller cluster size.
100952 - ..
100953 - Formatting took about 4 hours. Capacity reduced to about 465 GB, so
100954 - it seems that the extra cluster addresses took about 20 GB to store.
100955 - That seems like a lot of overhead.
100956 -
100957 - [On 120211 0127 formatted HP 1 TB external hard drive; took
100958 - over 5 hours. ref SDS 16 PRQS
100960 - ..
100961 - Paul's letter from Hitachi continues...
100962 -
100963 - 2. The transfer rate of an external drive relies on the capability
100964 - of the USB port more than anything else; and it will always be
100965 - slower than a direct IDE connection. There are two
100966 - specifications: USB 1.1 which has a transfer capability of up
100967 - to 12Mb/sec (Mega-bits per second) and USB 2.0 which has a
100968 - substantially greater capability of 480Mb/sec. This is still
100969 - slower than the capability of the IDE bus. ref DRT 1 GH5N
100971 - ..
100972 - Called and talked to Gary at Boeing; he said that Dell likely
100973 - installed the high speed USB port for a high-end 3.2 Ghz cpu.
100975 - ..
100976 - Not sure how to verify this issue. Product spec in the record on
100977 - 041116 lists USB ports. Independent research on product reviews lists
100978 - 8 hi-speed USB ports, ref SDS 2 0O5I, so assume this is USB 2.0 480
100979 - MB/sec presented in Paul's letter today.
100981 - ..
100982 - Paul's letter from Hitachi continues...
100983 -
100984 - 3. Lastly, the drive is capable of using the power saving features
100985 - of XP. These features are activated using the power option
100986 - applet within XP (control panel). There may also be power
100987 - options within your system BIOS that can be configured to take
100988 - advantage of the power features of the hard drive. ref DRT 1
100989 - MH6L
100991 - ..
100992 - Control Panel Power option properties shows...
100993 -
100994 - Turn off monitor.......... after 10 minutes
100995 - Turn off hard disks....... after 15 minutes
100996 - System standby............ never
100998 - ..
100999 - Not sure if this automatically shuts down the L drive. Does the
101000 - light go out in this mode?
101001 -
101002 -
101003 -
101004 -
101005 -
101006 -
1011 -
SUBJECTS
Backup Monthly Full File Work Files Macro 02908 Configure BK.CMD Com
1103 -
1104 - 1201
110501 - ..
110502 - Backup Monthly Full File System Command Op and Controlled SDS Macros
110503 -
110504 - Want to replace Exabyte tape drive for monthly full file system backup
110505 - of work files, and for reasons explained on 070307. ref SDS 7 8Q78
110507 - ..
110508 - Monthly full file backups require command support for doing multiple
110509 - backups per month, though normally only 1 will be needed. This
110510 - complements daily backups with backup.bat, ref OF 1 FN4N, developed on
110511 - 060304. ref SDS 6 NH3N Batch file commands support this feature,
110512 - shown below. ref SDS 0 114H
110514 - ..
110515 - Execute with a single call from the DOS prompt that will call SDS
110516 - tools that get the date and construct directory structure to make
110517 - multiple backups per month, if needed, although normally only 1 will
110518 - be needed per month.
110520 - ..
110521 - There is a batch file...
110522 -
110523 - c: 01 02 bk.cmd
110525 - ..
110526 - Call...
110527 -
110528 - C>bk
110530 - ..
110531 - Within bk.cmd, make a call to open a blank file with an Medit macro
110532 - processor...
110533 -
110534 - e lsdlksdl c:\sd\03\02908
110536 - ..
110537 - The Medit macro processor will read in the content of bk,cm, and edit
110538 - to delete the first part, and the last few commands, then configure
110539 - the remaining content to run backup commands, including an exit
110540 - command. Save the file to another name, say bk1.cmd
110542 - ..
110543 - End 02908 Medit macro processor.
110545 - ..
110546 - bk.cmd calls bk1.cmd to perform the backup, and then deletes bk1.cmd
110547 - to avoid unnecessary files.
110548 -
110549 -
110550 -
110552 - ..
110553 - BK.CMD Backup Batch Command Operation
110554 -
110555 - Use xcopy to transfer files and attrib command to reset the attributes
110556 - on transferred files.
110557 -
110558 - Line 20, ref OF 2 6N3O, in bk.cmd
110559 -
110560 - @echo off
110561 - cls
110562 - echo .
110563 - echo . Backup Monthly
110564 - echo .
110565 - echo .
110566 - pause
110567 - rem
110568 -
110569 - Echo off supresses command lines from scrolling on the screen
110570 - during the op. cls creates a clear screen. Put a pause so
110571 - the user can realize a monthly backup has started, and can end
110572 - it if this was a mistake.
110573 -
110575 - ..
110576 - Line 30, ref OF 2 2122, in bk.cmd
110577 -
110578 - rem modify bk.cmd to construct bk1.cmd to do the backup
110579 - rem
110580 - e bj2vaw \sd\03\02908....................... ref SDS 0 OS8K
110581 - rem
110582 - rem run bk1 with content in this file.
110583 - call bk1
110584 - rem
110585 - del bk1.cmd
110586 - rem
110587 - goto end................................. ref SDS 0 V48J
110588 - rem
110589 -
110590 - e bj2vaw \sd\03\02908 Medit opens a dummy file, bj2vaw, to
110591 - construct bk1.cmd by modifying bk.com with macro 02908,
110592 - explained below. ref SDS 0 OS8K call bk1.cmd executes the
110593 - revised batch file to perform backup per spec below.
110594 - ref SDS 0 V39N del bk1.cmd removes the temporary batch command
110595 - file, after the backup is accomplished. goto end jumps over the
110596 - code in the file that is for the backup, since this has already
110597 - been done, and ends the batch command operation.
110598 -
110600 - ..
110601 - Line 30, ref OF 2 2122, in bk.cmd
110602 -
110603 - rem Target line for 2nd level op.
110604 - rem
110605 - rem ##11
110606 - rem
110607 - l:
110608 - cd\
110609 - rem
110610 - md \backup\yyyy\mmddhhmm\c
110611 - md \backup\yyyy\mmddhhmm\d
110612 - md \backup\yyyy\mmddhhmm\e
110613 - md \backup\yyyy\mmddhhmm\f
110614 - md \backup\yyyy\mmddhhmm\g
110615 - md \backup\yyyy\mmddhhmm\h
110616 - rem
110618 - ..
110619 - Decided to manage backups as...
110620 -
110621 - yyyy = year, e.g., 2007
110622 - mm = month, e.g., 02 = February
110623 - dd = day, e.g,. 15 = 15th
110624 - hh = hour
110625 - mm = minute
110627 - ..
110628 - Files will stored by year, and then in a directory for...
110629 -
110630 - mmddhhmm = month, day, hour, minute.
110632 - ..
110633 - This allows doing multiple backups per month, and per day,
110634 - though normally only 1 will be needed, and complements the
110635 - daily backups done with backup.bat, ref OF 1 FN4N, developed on
110636 - 060304. ref SDS 6 NH3N
110638 - ..
110639 - rem ##11 is a tag for 02908 to remove lines from the top of
110640 - bk.cmd to construct bk1.cmd without only lines to perform the
110641 - backup. l: switches control to the l drive that is the
110642 - location of the new hard drive, reported on 070312. ref SDS 10
110643 - PJ4F cd\ sets the root directory, probably is not necessary.
110644 - series of md commands that create directories for transferring
110645 - files from the c14 hard drive partitions to corresponding
110646 - directories on drive l. Not sure this is even needed using
110647 - xcopy.
110649 - ..
110650 - Line 30, ref OF 2 OK5K, in bk.cmd
110651 -
110652 - rem Development files
110653 - rem
110654 - rem
110655 - xcopy c:\00\10\*.* \backup\yyyy\mmddhhmm\c\00\10\ /s/c/q/h
110656 - xcopy c:\01\02\*.* \backup\yyyy\mmddhhmm\c\01\02\ /s/c/q/h
110657 - xcopy c:\01\04\*.* \backup\yyyy\mmddhhmm\c\01\04\ /s/c/q/h
110658 - rem
110659 - rem <OK5K
110660 - rem
110661 - rem
110662 -
110663 - xcopy copies batch files and SDS development files to
110664 - corresponding directory structure
110666 - ..
110667 - Initially, did not include Medit program files, but on 091202
110668 - added these files in c: 00 10
110670 - ..
110671 - xcopy switches /s includes subdirectores, /c continues copying
110672 - even if errors occur, something will get done without wasting
110673 - endless amounts of time; /q backups without scrolling files on
110674 - the screen; /h includes hidden and system files, which includes
110675 - files marked hidden for confidential SDS records.
110677 - ..
110678 - Archive bit is not reset for hidden files, so the status
110679 - continues until expressly changed by the user. ref SDS 0 V48J
110681 - ..
110682 - Line 30, ref OF 2 LE7M, in bk.cmd
110683 -
110684 - rem Temp directories include 2, and
110685 - rem leave two (12, 13) not transferred to
110686 - rem provide a way to avoid transferring
110687 - rem some stuff for testing.
110688 - rem
110689 - xcopy c:\10\*.* \backup\yyyy\mmddhhmm\c\10\ /s/c/q/h
110690 - xcopy c:\11\*.* \backup\yyyy\mmddhhmm\c\11\ /s/c/q/h
110691 - xcopy c:\12\*.* \backup\yyyy\mmddhhmm\c\12\ /s/c/q/h
110692 - xcopy c:\13\*.* \backup\yyyy\mmddhhmm\c\13\ /s/c/q/h
110693 - rem
110694 -
110695 - Backup temporary directories.
110697 - ..
110698 - Line 30, ref OF 2 314N, in bk.cmd
110699 -
110700 - rem SDS program files
110701 - rem
110702 - xcopy c:\sd\01\*.* \backup\yyyy\mmddhhmm\c\sd\01\ /s/c/q/h
110703 - rem
110704 - rem SDS macros
110705 - rem
110706 - xcopy c:\sd\03\*.* \backup\yyyy\mmddhhmm\c\sd\03\ /s/c/q/h
110707 - rem
110708 - rem SDS default temporary directory
110709 - rem
110710 - xcopy c:\sd\10\*.* \backup\yyyy\mmddhhmm\c\sd\10\ /s/c/q/h
110711 - rem
110712 - rem
110713 - rem Internet Welchco web local files
110714 - rem
110715 - xcopy c:\sd\wl\*.* \backup\yyyy\mmddhhmm\c\sd\wl\ /s/c/q/h
110716 -
110717 - Backup SDS program files, macros, SDS temporary directory, and
110718 - the wl local web files.
110719 -
110721 - ..
110722 - Line 30, ref OF 2 5193, in bk.cmd
110723 -
110724 - rem SDS diary files
110725 - rem
110726 - xcopy d:\sd\*.* \backup\yyyy\mmddhhmm\d\sd\ /s/c/q/h
110727 - rem
110728 - rem
110729 - rem xcopy e:\01\*.* \backup\yyyy\mmddhhmm\e\ /s/c/q/h
110730 - rem
110731 - xcopy e:\sd\backup\*.* \backup\yyyy\mmddhhmm\e\sd\backup\ /s/c/q/h
110732 -
110733 - Backup SDS diary files, and daily interim backups. This
110734 - provides extra protection in case of problems with the main
110735 - disk.
110736 -
110737 - [On 070504 created alternate method of interim backup using
110738 - xcopy, following implemenetation processes developed today
110739 - for full file backups. ref SDS 15 0001
110740 -
110741 -
110743 - ..
110744 - Line 30, ref OF 2 5104, in bk.cmd
110745 -
110746 - rem Work files
110747 - rem
110748 - xcopy f:\02\*.* \backup\yyyy\mmddhhmm\f\02\ /s/c/q/h
110749 - xcopy f:\03\*.* \backup\yyyy\mmddhhmm\f\03\ /s/c/q/h
110750 - xcopy f:\04\*.* \backup\yyyy\mmddhhmm\f\04\ /s/c/q/h
110751 - xcopy f:\05\*.* \backup\yyyy\mmddhhmm\f\05\ /s/c/q/h
110752 - xcopy f:\07\*.* \backup\yyyy\mmddhhmm\f\07\ /s/c/q/h
110753 -
110754 - Backup all the work files on f:
110755 -
110757 - ..
110758 - Line 30, ref OF 2 5104, in bk.cmd
110759 -
110760 - rem
110761 - rem Personal files
110762 - rem
110763 - xcopy g:\08\*.* \backup\yyyy\mmddhhmm\g\08\ /s/c/q/h
110764 - rem
110765 - rem SDS sales distribution construction files
110766 - rem
110767 - xcopy g:\sd\*.* \backup\yyyy\mmddhhmm\g\ /s/c/q/h
110768 -
110769 - Backup personal files, and SDS development files.
110770 -
110772 - ..
110773 - Line 30, ref OF 2 0227, in bk.cmd
110774 -
110775 - rem Email files Rod and Millie
110776 - rem
110777 - xcopy h:\00\07\users\00101\*.* \backup\yyyy\mmddhhmm\h\00\07\users\00101\ /s/c/q/h
110778 - xcopy h:\00\07\users\00102\*.* \backup\yyyy\mmddhhmm\h\00\07\users\00102\ /s/c/q/h
110779 - rem
110780 - rem SDS help, contacts and subject index files
110781 - rem
110782 - xcopy h:\sd\*.* \backup\yyyy\mmddhhmm\h\sd\ /s/c/q/h
110783 -
110784 - Backup Netscape email files for each user, and backup SDS help,
110785 - contacts, and subject index.
110786 -
110788 - ..
110789 - Line 30, ref OF 2 0442, in bk.cmd
110790 -
110791 - attrib -a c:\01\02\*.* /s
110792 - attrib -a c:\01\04\*.* /s
110793 - attrib -a c:\10\*.* /s
110794 - attrib -a c:\11\*.* /s
110795 - attrib -a c:\12\*.* /s
110796 - attrib -a c:\13\*.* /s
110797 - attrib -a c:\sd\01\*.* /s
110798 - attrib -a c:\sd\03\*.* /s
110799 - attrib -a c:\sd\10\*.* /s
110800 - attrib -a c:\sd\wl\*.* /s
110801 - attrib -a d:\sd\*.* /s
110802 - attrib -a f:\02\*.* /s
110803 - attrib -a f:\03\*.* /s
110804 - attrib -a f:\04\*.* /s
110805 - attrib -a f:\05\*.* /s
110806 - attrib -a f:\07\*.* /s
110807 - attrib -a g:\08\*.* /s
110808 - attrib -a g:\sd\*.* /s
110809 - attrib -a h:\00\07\users\00101\*.* /s
110810 - attrib -a h:\00\07\users\00102\*.* /s
110811 - attrib -a h:\sd\*.* /s
110812 -
110813 - Reset archive attribute for all backed up files, except
110814 - confidential files, which are configured with hidden archive
110815 - bit, that is not reset with the attrib command, per above.
110816 - ref SDS 0 2H6N
110817 -
110819 - ..
110820 - Line 30, ref OF 2 0457, in bk.cmd
110821 -
110822 - rem ##24
110823 - rem
110824 - rem
110825 - :end
110826 - rem
110827 - cls
110828 - echo.
110829 - echo.
110830 - echo. Backup completed
110831 -
110832 - ##24 flag used in 02908 macro file to delete commands to end of
110833 - file for constructing bk1.cmd to run only xcopy commands, per
110834 - below. :end is target for goto in beginning to end the
110835 - operation after calling bk1.cmd.
110836 -
110838 - ..
110839 - Macro 02908 Modify BK.CMD to Construct BK1.CMD for Running Xcopy
110840 -
110841 -
110842 - Line 60, ref OF 3 NO4O, 01 04 029080
110843 -
110844 - errorcnt 0 0
110845 - macro 301
110846 - g \01\02\bk.cmd
110848 - ..
110849 - bk.cmd opens file bj2vaw a dummy file, ref SDS 0 HP4M, that
110850 - does not exist; macro 301 deletes any lines in case some how or
110851 - other the file is not blank. g \01\02\bk.cmd reads the code for
110852 - bk.cmd, per above. ref SDS 0 5M6O
110853 -
110855 - ..
110856 - Line 60, ref OF 3 YX7H, 01 04 029080
110857 -
110858 - e \sd\03\02701
110859 - datecnt 1 0
110860 - line && *%1
110861 - loc_cur 4 8
110862 - inscnt 1 0
110863 - line && *%2
110864 - loc_cur 4 12
110865 - -if @2 < 10 ic 48
110866 - inscnt 2 0
110867 - -if @3 < 10 ic 48
110868 - inscnt 3 0
110869 - -if @4 < 10 ic 48
110870 - inscnt 4 0
110871 - -if @5 < 10 ic 48
110872 - inscnt 5 0
110873 -
110874 - e \sd\03\02908 opens macro file to set change commands that
110875 - modify bk.cmd datecnt 1 0 captures date from system clock.
110876 - line commands move to the change commands in 02908, loc_cur
110877 - commands position for entering the year, then month, day, hour
110878 - and minute values in the chnage commands. This supports
110879 - creating multiple backups on the same day.
110880 -
110882 - ..
110883 - Line 60, ref OF 3 PPWS, 01 04 029080
110884 -
110885 - e bj2vaw
110886 - z 1 90
110887 - *%1
110888 - c/yyyy/yyyy/* 1
110889 - **
110890 - *%2
110891 - c/mmddhhmm/mmddhhmm/* 1
110892 - **
110893 -
110894 - e bj2vaw opens temp file that has content from bk.cmd; z 1 90
110895 - sets zone for change command. change commands modify md and
110896 - xcopy commands in temporary file for year, month, day. hour,
110897 - and minute to enable multiple backups each day.
110898 -
110900 - ..
110901 - Line 60, ref OF 3 0098, 01 04 029080
110902 -
110903 - top
110904 - immed dd
110905 - z 1 10
110906 - l /##11/
110907 - immed dd
110908 - l /##24
110909 - immed a
110910 - up
110911 - ins_text /exit/
110912 - rel_cur 1 0
110913 - immed 999d
110914 - save c:\01\02\bk1.cmd
110915 - e \sd\03\02701
110916 - purge bj2vaw
110917 - quit
110918 -
110919 - top starts immed dd to remove the part of bk.cmd code read into
110920 - the temporary file that calls this macro file 02908; l /##11/
110921 - finds the end of the first part of bk.cmd code that is deleted
110922 - to leave the code for the xcopy files. The code then enters an
110923 - exit command. exit command is entered for ending a batch
110924 - command within a batch command op and having the op continue.
110925 - Remove bk.cmd code lines that are not needed for xcopy command
110926 - op. Code is then saved to bk1.cmd, switch to 02908 macro to
110927 - purge the temp file, then quit to return control to bk.cmd for
110928 - running bk1.cmd.
110929 -
110930 -
110931 -
110932 -
1110 -
SUBJECTS
Backup Evaluation Op and Hard Drive Efficiency Storage Increased 40%
1203 -
120401 - ..
120402 - Evaluation Backup Op and Hard Drive
120403 - Efficiency Storage Increased 40% with 512 Byte Clusters
120404 -
120405 - After completing the new backup system, testing seems to indicate
120406 - that switching to 512 byte clusters increases capacity for data
120407 - storage by about 140 GB on a 500 GB drive, or about 30%.
120408 -
120409 - [On 070315 first backup with 512 byte cluster size and new
120410 - backup batch tools. ref SDS 13 ED61
120412 - ..
120413 - ..
120414 - Disk capacity was intially shown as 494 GB with 32K cluster size,
120415 - reported on 070312. ref SDS 10 8M4O After formatting to 512 byte
120416 - clusters, capacity of the 500 GB drive is now reduced to 465 GB. An
120417 - additional 29 GB is required to manage more storage addresses.
120419 - ..
120420 - Trial backup...
120421 -
120422 - 102,303 files, 28,489 folders
120423 -
120424 - C14 External Drive L
120425 - New Original
120426 - Cluster size 4096 512 32K
120427 - Disk capacity 465 GB 494 GB
120428 - File Size 2.61 2.61 3.0
120429 - Size on disk 2.83 2.63 = 177 4.0 = 123 backups
120430 -
120431 - 177 - 123 = 54 more backups with 512 byte clusters
120433 - ..
120434 - This indicates the L drive configured with 512 byte clusters is more
120435 - efficient than the internal hard drive partition c for C14 configured
120436 - with 4096 byte clusters. For the Hitachi external drive size on disk
120437 - of 2.62 GB allows 177 backups with 465 GB using 512 byte clusters, and
120438 - only 123 backups with 494 GB using 32K clusters.
120440 - ..
120441 - 177 - 123 = 54 more backups x 2.63 = 142 GB increased capacity
120442 -
120443 - [On 070319 letter to Hitachi commends Paul's work and
120444 - Hitachi customer support services for contributing to backup
120445 - efficiency, essential for Knowledge Management practices to
120446 - save lives, time, and money. ref SDS 14 7D9I
120447 -
120448 -
120449 -
120450 -
120451 -
120452 -
120453 -
120454 -
120455 -
120456 -
1205 -