pd_result 今天要说的问题不是这个,这个只是附带优化下 重点问题是关于读取xls时的一个警告 WARNING *** file size (1080329) not 512 + multiple of sector...xlrd下的compdoc.py文件的第117-118行附近(看有的是119行)代码 print("WARNING *** file size (%d) not 512 + multiple of sector
2 and ends at sector 33 First usable sector is 34, last usable sector is 11721045134 Partitions will...) End (sector) Size Code Name 1 2048 1048578047 500.0 GiB 8300 Linux...2 and ends at sector 33 First usable sector is 34, last usable sector is 11721045134 Partitions will...(sector) End (sector) Size Code Name 1 2048 1048578047 500.0 GiB 8300...2 and ends at sector 33 First usable sector is 34, last usable sector is 11721045134 Partitions will
SAP RETAIL初阶之MM41创建商品主数据界面里的Industry Sector SAP RETAIL系统里,使用事务代码MM41去创建商品主数据里,初始界面并不需要用户选择Industry...Sector。...选择了物料类型,物料组,物料种类等栏位,输入门店代码,选择相关视图后回车,在Basic Data视图里看到Industry Sector字段值默认为1,如下图示: 这是什么配置起的作用?...点击该菜单节点,进入如下界面, Retail Industry Sector字段值为1. -完- 写于2022-1-19
) End (sector) Size Code Name 1 2048 2099199 1024.0 MiB 8300 Linux...filesystem 2 2099200 4196351 1024.0 MiB 8300 Linux filesystem 将MBR转换成GPT分区...'Linux filesystem' Hex code or GUID (L to show codes, Enter = 8300): Changed type of partition to '...Linux filesystem' Command (?...) End (sector) Size Code Name 1 2048 4196351 2.0 GiB 8300 Linux
for help): n Partition number (3-128, default 3): First sector (34-20971486, default = 12584960) or...swap 8300 Linux filesystem 8301 Linux reserved 8302 Linux /home 8400...is 34, last usable sector is 20971486 Partitions will be aligned on 2048-sector boundaries Total free...space is 2014 sectors (1007.0 KiB) Number Start (sector) End (sector) Size Code Name...3.0 GiB 8300 Linux filesystem 3 12584960 20971486 4.0 GiB 8200 Linux
identifier: 0x00043041 Device Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux.../dev/sda2 2099200 20971519 9436160 8e Linux LVM Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520...The device presents a logical sector size that is smaller than the physical sector size....(2048-20971519, default 20971519):【默认回车】 Using default value 20971519 Partition 1 of type Linux and of.../dev/sda2 2099200 20971519 9436160 8e Linux LVM Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520
磁盘是怎么分区的在文章后面会谈到,先谈一下Linux文件系统的简单操作。不过在阅读本文之前,我假定读者们对Linux的磁盘与文件系统以及目录树已经有了初步的了解。...identifier: 0x00043041 Device Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux.../dev/sda2 2099200 20971519 9436160 8e Linux LVM Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520...The device presents a logical sector size that is smaller than the physical sector size..../dev/sda2 2099200 20971519 9436160 8e Linux LVM Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520
(2048-41943039, default 2048): #直接回车 Using default value 2048 Last sector, +sectors or +size{K,M,G}...(10487808-41943039, default 10487808): #直接回车 Using default value 10487808 Last sector, +sectors or +...(20973568-41943039, default 20973568): #直接回车 Using default value 20973568 Last sector, +sectors or +...Disk /dev/sdc: 21.5 GB, 21474836480 bytes, 41943040 sectors Units = sectors of 1 * 512 = 512 bytes Sector...5242880 83 Linux Command (m for help): #w 保存退出 The partition table has been altered!
说明: 当Linux系统的硬盘空间不够时,我们需要添加新的硬盘。本文物理添加硬盘的方法略过,只介绍在linux系统的分区、格式化和挂载的内容。...107.4 GB, 107374182400 bytes, 209715200 sectors <===这里是新加磁盘 Units = sectors of 1 * 512 = 512 bytes Sector...Disk /dev/sda: 32.2 GB, 32212254720 bytes, 62914560 sectors Units = sectors of 1 * 512 = 512 bytes Sector...MB, 4194304000 bytes, 8192000 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical...(2048-209715199, default 2048): <===直接回车 Using default value 2048 Last sector, +sectors or +size{
LVM Partition 2 does not start on physical sector boundary....Adding logical partition 6 First sector (209715200-629145599, default 209715200): Last sector, +sectors...LVM /dev/sda6 209715200 629145599 419430400 200G 83 Linux Partition 2 does not start on physical sector...type (type L to list all types): 8e # LVM 类型的 Id 代码 Changed type of partition 'Linux' to 'Linux LVM'...sector boundary.
Partition 1 does not start on physical sector boundary....Partition 1 does not start on physical sector boundary....Partition 1 does not start on physical sector boundary....Partition 1 does not start on physical sector boundary....in Linux
Disk /dev/sda: 21.5 GB, 21474836480 bytes, 41943040 sectors Units = sectors of 1 * 512 = 512 bytes Sector.../dev/sda2 2099200 41943039 19921920 8e Linux LVM Disk /dev/mapper/cl-root: 18.2 GB..., 18249416704 bytes, 35643392 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical...(2048-20971519, default 2048): #回车选择默认值 Using default value 2048 Last sector, +sectors or +size{K,M...' to 'Linux LVM' Command (m for help): p #打印分区,可看到类型修改为8e,linux LVM Disk /dev/sdb: 10.7 GB, 10737418240
Disk identifier: 0x0008ce60 Device Boot Start End Blocks Id System /dev/sda1 * 2048 2099199 1048576 83 Linux.../dev/sda2 2099200 1048567807 523234304 8e Linux LVM Disk /dev/mapper/vg_root-lv_root: 64.4 GB, 64424509440.../dev/sda2 2099200 1048567807 523234304 8e Linux LVM Disk /dev/mapper/vg_root-lv_root: 64.4 GB, 64424509440...Disk identifier: 9C5E039C-2C6C-4585-8EAB-7B2DBA949516 # Start End Size Type Name 1 34 4294965343 2T Linux...Disk identifier: 9C5E039C-2C6C-4585-8EAB-7B2DBA949516 # Start End Size Type Name 1 34 4294965343 2T Linux
/module.h> #include #include #include #include #include #include #include #include #include #include #include #include ...#include #include #include #include #include...= NULL) //获取每个申请 { offset=req->sector*SECTOR_SIZE; //偏移值
本文主要参考若干kernel资料,对应的kernel源码版本主要包括:linux-0.11, linux-2.2.16, linux-2.4.0, linux-2.4.19, linux-2.6.18。...Buffer Cache 磁盘的最小数据单位为sector,每次读写磁盘都是以sector为单位对磁盘进行操作。 sector大小跟具体的磁盘类型有关,有的为512Byte, 有的为4K Bytes。...同样,如果用户希望向磁盘某个位置写入(更新)1个byte的数据,他也必须整个刷新一个sector,言下之意,则是在写入这1个byte之前,我们需要先将该1byte所在的磁盘sector数据全部读出来,在内存中...,修改对应的这1个byte数据,然后再将整个修改后的sector数据,一口气写入磁盘。...为了降低这类低效访问,尽可能的提升磁盘访问性能,内核会在磁盘sector上构建一层缓存,他以sector的整数倍力度单位(block),缓存部分sector数据在内存中,当有数据读取请求时,他能够直接从内存中将对应数据读出
访问Linux文件系统 文件系统:操作系统管理组织文件的方式 带日志 命令:mkfs.xfs /dev/sdb1 挂载: 文件系统必须挂载才可以使用。...to 'Linux filesystem' Command (?...2 and ends at sector 33 First usable sector is 34, last usable sector is 6291455966 Partitions will...(sector) End (sector) Size Code Name 1 2048 20973567 10.0 GiB 8300...Linux filesystem Command (?
闲话不多说,我们看看一个ramdisk代码驱动是怎么写的,代码来自《深入linux 设备驱动程序内核机制》, #include #include #include #include #include #include ...#include #include #include #define RAMHD_NAME...(RAMHD_SECTORS * RAMHD_HEADS *RAMHD_CYLINDERS) #define RAMHD_SIZE (RAMHD_SECTOR_SIZE * RAMHD_SECTOR_TOTAL...+ (bio->bi_sector * RAMHD_SECTOR_SIZE); bio_for_each_segment(bvec, bio, i){ pBuffer = kmap(bvec->bv_page
[Targets: 0] /iscsi> create Created target iqn.2003-01.org.linux-iscsi.storage-b.x8664:sn.46b1dc2750be...[Targets: 1] o- iqn.2003-01.org.linux-iscsi.storage-b.x8664:sn.46b1dc2750be ..........................[Targets: 1] | o- iqn.2003-01.org.linux-iscsi.storage-b.x8664:sn.46b1dc2750be ........................[ACLs: 1] | | o- iqn.2003-01.org.linux-iscsi.storage-b.x8664:sn.46b1dc2750be:client ..............:sn.46b1dc2750be 10.10.2.21:3260,1 iqn.2003-01.org.linux-iscsi.storage-b.x8664:sn.46b1dc2750be 登陆连接:
src]# cd linux/ [root@data-node01 linux]# ls Lib_Utils-1.00-09.noarch.rpm MegaCli-8.00.48-1.i386.rpm...linux]# MegaCli64 -CfgLdAdd -r0[32:3] WB Direct -a0 [root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0...linux]# MegaCli64 -CfgLdAdd -r0[32:6] WB Direct -a0 [root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0...linux]# MegaCli64 -CfgLdAdd -r0[32:9] WB Direct -a0 [root@data-node01 linux]# MegaCli64 -CfgLdAdd -r0...[root@data-node01 linux]# MegaCli64 -PDList -aALL 然后使用"fdisk -l"就能发现所有的物理磁盘了 [root@data-node01 linux
#include #include #include #include <linux...{ sector_len=len; } while(1) { W25Q64_ReadData(addr,W25Q64_BUFF,sector_len); for(i=0;i<sector_len...); if(sector_len==len)break; //数据写完 buff+=sector_len; addr+=sector_len; len-=sector_len;...{ sector_len=len; } while(1) { W25Q64_ReadData(addr,W25Q64_BUFF,sector_len); for(i=0;i<sector_len...); if(sector_len==len)break; //数据写完 buff+=sector_len; addr+=sector_len; len-=sector_len;
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