µo«H¤H¡Gchiming@ms2.hinet.net (C.M.Lin)
¤é´Á¡GWed, 02 Apr 1997 23:05:29 +0800
¼ÐÃD¡GRe: ¤£¬O­n¦Ò§A°Õ!?
«H¸s¡Gtw.bbs.comp.novell    ¬ÝªO¡G
¥N¸¹¡G<334275B9.5A3E@ms2.hinet.net>
²Õ´¡GKaohsiung ¤½¶éºñ¬w

¹Q®Ä­ð wrote:
> 
> chess wrote:
> >
> > ==> ¦b ¹Q®Ä­ð <tzou ªº¤å³¹¤¤´£¨ì:
> > : TCC Club ªº¯Q¾~«L wrote:
> > : >   1.­Y¬O§Úªº¸Ü.. §Ú·|³]¦¨block size¬°16k..
> > : >     ­ì¦]¬O±zªºHD¬°4GB..
> > :     §Ú¦³¤@­Ó¤p¤pªººÃ´b,°²³]»¡HD¬°4GB,So Volume Size ³]¬° 16K
> > :     ¨º»ò¦¹Block Size «K»P Memory Size µLÃöÅo?¨º§Ú´N§ó¦n©_¤F,
> > :     °O±o¥H«e¦b¬[ Server ®É,«e½ú·|§i¶D§Ú»¡,¦pªG RAM ¬O 8M ªº¸Ü
> > :     ,¨º»ò Volume ªº Block Size ³]¬° 4K,·íµM¨º®Éªº HD ¬O 1GB,
> > :     ¨Ã»¡©ú,¦pªG³]ªº¤Ó¤j,®Ä²v·|«Ü¤£¦n.¦]¦¹§Ú·|»{¬°¦¹ Block Size
> >         Ãöó block size ªº³]©w¤@¯ë§Ú·|¦Ò¼{´X­Ó³¡¤À
> >         ­º¥ý¬O memory ¦]¬° memory ¦pªG¤Ó¤p¦Ó Volume «Ü¤j¨º·|¦³
> >         °O¾ÐÅ餣°÷¦Ó mount ¤£°_¨Óªº°ÝÃD¡I¥t¥~¦]¬° memory ¦b mount
> >         volume ¥Î±¼¤Ó¦hªº¸Ü¡A³Ñ¤U¨Ó¥i¥H§@¬° cache buffers ªº¦pªG
> >         ¤Ó¤Ö¤F¡I¦ÛµM·|¼vÅT server ¾ãÅ骺¹B§@®Ä²v¡I
> >         ©Ò¥H 8M ªº server 1GB ¥u¥Î 4k block size ¥ú¬O mount volume
> >         ´N­n 5M ¦h¡]Vol-Mg * .023 /block-size¡^¦A¥[¤W NOS ¸ò¨ä¥L
> >         .NLM §Ú«ÜÃhºÃ³o¼Ë®Ä²v·|¦n¶Ü¡H·íµM HD ®e¶q¨Ï¥Î²v¬O¤ñ¸û°ª¡I
> >         ¨ä¦¸¬O¸Ó volume ¤W©Ò¦sªº¸ê®ÆÃþ«¬¦]¬° 3.12 ªº block size
> >         ¨M©w¤F©Ò¦sªºÀɮתº³Ì¤p¨Ï¥ÎªÅ¶¡¡A´N¹³ dos ªº allocation size
> >         ¦P¼Ë¤]¼vÅT¨ì¦s¨ú¸ê®Æªº®Ä²v¡I
> >         ¦]¦¹Â²³æ¦^µª»¡¦]¬° HD ¬O 4GB ´N§â block ³]¦¨ 16 K
> >         ¬O¤Ó²¤Æ¤F¡I
> >
> 
>     chess ¥S,§Ú®Ú¾Ú±z´£¨Ñªº¤½¦¡(vol-Mg*0.023/block-size)¨Óºâ,
> ¥H 8MB ªº RAM ¤Î 1GB ªº Hard-Disk ¨Ó­pºâ,«ç»òºâ¤]ºâ¤£¥X 5M ¦h
> ªº¯Ó¥Îµ{«×,½Ð°Ý¤@¤U vol , Mg ©Ò¥Nªíªº¬O¨º¤@­Ó¼Æ­È.¥t¥~,¥Ñ¦¹¤½
> ¦¡©Ò¨Dªºµ²ªG¬O§_¬° Block Size ?
> 
>     §Ú­Ì¦b±´°Q¤@­Ó°ÝÃD,¨º´N¬O¦b§A©Ò¦Ò¼{ªº´X¶µ­n¥ó¤¤,¬O§_À³±N¦¹
> Server ¤¤ªº¥Ø¿ý¦h¹è¤ÎÀɮפj¤pªº¦]¯À¦Ò¼{¦b¨ä¤¤,´N¾ã­Ó Server ªº
> ¹B§@®Ä²v¨Ó»¡ªº¸Ü?
> 
>     ³Ì«á,«Ü°ª¿³¯à»P§A¤Îºô¤WªºªB¤Í°Q½×°ÝÃD,³o¬O¤@¥ó¥O¤H´r§Öªº¨Æ
> ±¡....
Block Size ¬° 4KB ®É
»Ý¨D°O¾ÐÅéÀ³¬O M= .023 * Volume Size(in MB) / Block Size
               M= .023*1024/4
                = 5.88 MB 
¦p¬° 8kb ®É
               M= .023*1024/8 
		= 2.98 MB         
©Ò¥HBlock Size »P °O¾ÐÅé»Ý¨D¬O¦¨¤Ï¤ñÃö«Y            
¦b 3.12 ª©·íBlock Size ³]¸û¤j®É¦³®ö¶OµwºÐªÅ¶¡ªºÅU¼{¡A
¦ý°O¾ÐÅ餣¨¬®É´N¤£±o¤£ªº±¹¬I¡C

¦b 4.1* ª©«h¸ûµL¦¹ÅU¼{¡A¦]¨äµwºÐÀɮ׺޲z¸û3.12 ±j«Ü
¦h¡C¨ä¦³Block Suballocation ªº¥\¯à¡C¦P¼ËªºBlock Size
¤Î¦P¼ËªºµwºÐ¦bServer 4.1* ·|¤ñ Server 3.12 ¦h©ñ«Ü¦hÀÉ
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Block Suballocation ªº¥\¯à·|§Q¥Î¥¼¥Î§¹ªºBlock ªÅ¶¡¦s©ñ
¸û¤pªºÀɮסA©Ò¥H§Y¨Ï¦³«Ü¦h¤p©óBlock Size ªºÀɮצs¦b¤]¤£
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