linux¹ÒÔØÐÂÓ²ÅÌ
fdisk -l ÃüÁî¿´µ±Ç°´ÅÅÌÐÅÏ¢
[root@roswell root]# fdisk /dev/sdb
Command (m for help): m --´òÓ¡¸ÃÃüÁîµÄ²ÎÊý¹¦ÄÜÁбí
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help):
Command (m for help): p --´òÓ¡´ý·ÖÇøµÄ´ÅÅÌÐÅÏ¢
Disk /dev/sdb: 50.0 GB, 50019202560 bytes
255 heads, 63 sectors/track, 6081 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
Command (m for help):
Command (m for help): n --½øÐдÅÅÌ·ÖÇø
Command action
e extended
p primary partition (1-4)
p --e£ºÂß¼·ÖÇø p£ºÖ÷·ÖÇø£¬4¸öÖ÷·ÖÇø
Partition number (1-4): 1 --»®·ÖΪµÚÒ»¸öÖ÷·ÖÇø
First cylinder (1-6081, default 1): 1 --Æðʼ´ÅÅÌÊý£¬²»ÌîĬÈÏΪ1
Last cylinder or +size or +sizeM or +sizeK (1-6081, default 6081): 6081 --¶¨Òå¸Ã·ÖÇø´óС£¬²»ÌîĬÈÏΪȫ²¿¿ÉÓô洢¶î
Command (m for help):
Command (m for help): p --´òÓ¡´ý·ÖÇøµÄ´ÅÅÌÐÅÏ¢
Disk /dev/sdb: 50.0 GB, 50019202560 bytes
255 heads, 63 sectors/trac
Ïà¹ØÎĵµ£º
0, ¸´Ï°ÒѾѧ¹ýµÄ Linux ֪ʶ£¬ÕûÀíÁËЩÈÝÒ×ÍüµôÁ˵ķÅÕâ
1, ÃüÁîÐÐÖÐÒ»´Î¿ÉÒÔÊäÈë¶à¸öÃüÁÖмäÒԷֺźŸô¿ª
2, ÃüÁî¹ý³¤¿ÉÒÔÓÃ'\' £¨backslash £©¶Ï¿ªÐ´µ½¶à¸öÎïÀíÐÐÉÏ
3, I/O ÖØ¶¨ÏòµÄÊéд˳ÐòÊÇÖØÒªµÄ£¬ÏµÍ³´Ó×óÏòÓÒɨÃèÃüÁîÐÐ
4, ¹ÜµÀÊÇÒ»ÖÖÌØÊâµÄI/O ÖØ¶¨Ïò
5, tee Èýͨ¹ ......
LinuxÎļþϵͳ֮Îļþ¡¢·ÖÇø´óСÏÞÖÆ
ÒÔÏÂΪºìñext3ÎļþϵͳËùÖ§³ÖµÄmax file sizeºÍmax filesystem size£º
¶ÔÎļþϵͳ
µÄÏÞÖÆÈçÏ£º
ext3 Îļþϵͳ£¬ºìñÆóÒµ°æ Linux 3 µÄÎļþϵͳ×î´óÊÇ 2TB£¨ÒÑÑéÖ¤£©£¬ºìñÆóÒµ°æ Linux 4 ºÍ 5 Ìá¸ßµ½ÁË
8TB£¨ÒÑÑéÖ¤£©£¬ºìñÆóÒµ°æ Linux 5 Ö§³ÖÎļþϵͳµÄÀíÂÛÖµÊÇ 16TB¡£
GFS ......
LinuxÏ¿ÉÒÔÓÃls –l ÃüÁîÀ´ÅжÏÎļþÀàÐÍ£¬ÈçÉÏ Í¼Ëùʾ¡£¿ÉÒÔÒÀ¾ÝµÚÒ»ÁÐÖеÄ10¸ö×Ö·ûÀ´Åжϡ£
¡¡¡¡• -rw-r—r—Ö¸Ã÷ÁË1.txtÎļþÊÇÒ»¸öÆÕͨÎļþ£¬1.txtºÍmyprog04Îļþ¶¼ÊÇÆÕͨÎļþ¡£ÒÔ”-“¿ªÍ·µÄ¶¼ÊÇÆÕͨÎļþ£¬¶øÒÔ”d”¿ªÍ·µÄÊÇĿ¼Îļþ¡£
¡¡¡¡• brw-rw---- Ö¸Ã÷ÁË/dev/sd ......
¸ÅÊö
1. “/etc/profile”Îļþ
2. “bdflush”²ÎÊý
3. “ip_local_port_range”²ÎÊý
4. “/etc/nsswitch.conf”Îļþ
5. “/proc”Îļþϵͳ
6. “ulimit”²ÎÊý
7. Ôö¼Óϵͳ´ò¿ªµÄÎļþÊýÄ¿
8. Îļþ“atime”ÊôÐÔ
9. ÎļþµÄ“noatime&rd ......
°æÈ¨ÉùÃ÷
±¾ÎÄ×÷ÕßÊÇһλ×ÔÓÉÈí¼þ°®ºÃÕߣ¬ËùÒÔ±¾ÎÄËäÈ»²»ÊÇÈí¼þ£¬µ«ÊDZ¾×Å GPL µÄ¾«Éñ·¢²¼¡£ÈκÎÈ˶¼¿ÉÒÔ×ÔÓÉʹÓá¢×ªÔØ¡¢¸´ÖƺÍÔÙ·Ö·¢£¬µ«±ØÐë±£Áô×÷ÕßÊðÃû£¬Ò಻µÃ¶ÔÉùÃ÷ÖеÄÈκÎÌõ¿î×÷ÈκÎÐÎʽµÄÐ޸ģ¬Ò²²»µÃ¸½¼ÓÈÎºÎÆäËüÌõ¼þ¡£Äú¿ÉÒÔ×ÔÓÉÁ´½Ó¡¢ÏÂÔØ¡¢´«²¥´ËÎĵµ£¬µ«Ç°ÌáÊDZØÐ뱣֤ȫÎÄÍêÕû×ªÔØ£¬°üÀ¨ÍêÕûµÄ°æÈ¨ÐÅÏ¢ºÍ× ......