touro 4tb

partition number is 16. Therefore, the primary and extended partition numbers occupy 1~4, and logical partitions occupy 5~16. Even if you have only one primary partition (for example,/DEV/SDA1) and one extended partition (/DEV/SDA2) on your hard disk, the remaining two primary partition numbers:/DEV/SDA3,DEV/SDA4 are not assigned to logical partitions. The first logical partition must be numbered starting with/DEV/SDA5.File systemLinux supports many different kinds of file systems. Linux is cap

in the format, where the MBR maximum partition is less than or equal to 2TB, and the GPT partition does not have 2TB limit, the theoretical maximum partition of the EB!Now we know that to create a partition larger than 2TB, you cannot use the MBR format partition table, and to use the GPT-formatted partition table, our most commonly used Fdisk partitioning tool will not be able to use the parted partition tool under Linux !The test environment is:Dell R710 2u ServerCPU 5606 XEONMem 16GDisk 6*1T

Http://www.cnblogs.com/ggjucheng/archive/2012/10/07/2714294.htmlObjectiveMost file systems retain some space for emergencies (such as a full disk space), which ensures that some critical applications (such as databases) have a bit of leeway when the hard disk is full, not crash immediately, giving monitoring systems and administrators a little time to detect. However, sometimes this part of the reserved hard disk space is a bit wasteful. How do I release the space reserved for this part of the s

This new feature, called "Storage space," will take advantage of a physical storage facility to make up the data pool. This data pool will be created using SATA, USB, and SAS hard drives and can use additional hardware extensions. These virtual hard disks, called "spaces", can extend 4TB storage space to 10TB. These storage spaces also provide an elastic layer to solve the problem of errors in different physical media. Another benefit of this featur

The difference between SSD and mechanical hard disk Solid-state hard disk and mechanical hard drive to distinguish between many, first of all, from the shape, the mechanical hard disk is larger than the solid state hard disk, so the weight is heavier than the solid state hard disk, followed by the price, solid-state hard disk price than mechanical hard disk much more expensive. In general, desktop computers are the basic mechanical hard drive, but with the development of solid-state drives, wit

First, the environment 1, Disk: Sata,ext4,inode number = disk size/16kb 2,fastdfs:5.05, close the merge store. 3, download agent: Deprecated Fastdfs nginx module, using nginx static path download. 4, assuming that the single disk size is 4tb,fastdfs 32*32=1024, assuming that each small file is 16KB, each subdirectory needs to store 24w files. Second, the test file storage directory structure as follows, the subdirectory value for the final storage of

:4GB) /p> Linux 2.4+ (using ext3 filesystem) 4TB Solaris 9/10 16TB NetWare w/nss filesystem 8TB Win32 W/fat/fat32 2GB/4GB Win32 W/ntfs 2TB (possibly larger) MacOS X w/hfs+ 2TB Under the Linux 2.2 platform, more than 2GB of MyISAM tables can be obtained by using a large file

MySQL3.22 limits the table size to 4GB. Due to the use of the MyISAM storage engine in MySQL3.23, the maximum table size was increased to 65536TB (2567–1 bytes). Due to the larger table size allowed, the maximum valid table size for MySQL database is usually determined by the operating system's limit on file size, rather than the MySQL internal limit. The InnoDB storage engine saves the InnoDB table in a table space, which

converted to file_id, which enables accurate row positioning.DATA_OBJECT_ID (usually segment number), which table space,relative_fno->file_id More specific database restrictions see the Official document: http://docs.oracle.com/cd/B19306_01/server.102/b14237/limits.htm#REFRN004--??rowID of bigfile table spacebecause the large file tablespace can only include one file, there is no need to file#-the file ID in rowID. the ROWID format for large file table spaces is:oooooo. Lllllllll.rrroooooo:1-6

small document management and processingIntelligent search and mining system for heterogeneous dataSuccess StoriesWang Shupeng said the system has a successful application case, is a national ministry of the Big Data management project. The main requirements of this system are:A large amount of information is recorded, generating about 4 billion articles per day (about 4TB);Data retention backup copy, record Data retention half a year;The data can be

User role-based rights management system.Storage mechanism:The mmap file + memory index is used. Memory and cache management is the responsibility of the operating system, which degrades performance when the size of the data set is exceeded. Memory control under Linux can be implemented by configuring user Ulimit-u.Real needs: 1. Need to store flexible semi-structured data for fields. 2. The storage size of billions of records, average 20k per record. 3. Read demand is much larger than write (i

Server 2012 is highly consistent with the Windows operating system installation mode that you expect. We can install it from a DVD or a USB flash drive and just answer a few questions to get it done easily. What you need to prepare is a computer device that supports 64-bit systems with a minimum of 512MB of memory. If you want to run Hyper-V, the Standard Edition also requires the user to have a virtualized CPU. In addition, if you plan to use this storage system for your cluster, you will need

still too many links, coupled with the complexity of the various linkages between these links, we will be stable, reliable, "big" the three indicators in the first place, other indicators as the secondary requirements are put behind. So, from this point, Laxcus, although able to manage millions's computer nodes, realizes the EB-level data storage computing power, but also provides a fast memory-based data processing solution, but not a big data system designed for the pursuit of "fast".Now go b

1600$ sudo ceph OSD Pool set hcn950 size 3Create EC Pools:$ sudo ceph OSD Pool Create EC1 1400 1400 erasure$ sudo ceph OSD Pool create EC2 1400 1400 erasureCreate 4TB image and map to pool:$ sudo rbd create image--size 4194304-p hcn950$ sudo rbd map image-p hcn950Than can check the RBD:$ sudo rbd showmappedHow to calculate pg_num for replicate pool and EC pool?For Replcate Pool:Pg_num = (Osd_num *)/Pool SizeFor EC Pool:Pg_num = (Osd_num * +)/(K+M)k=2

this way. Of course it sucks. Copy the Code code as follows: /*** Use routines: can be used for paging class or page replacement, etc.$url = "add_jd.php?pid=4tb=gm_jdpage=1";Echo ("Original URL:". $url);Echo ('' );Echo ("string parameter:". Url::replace ($url, "pid=10,page=2"));Echo ('' );Echo ("Array type parameter:". Url::replace ($url, Array (' PID ' =>10, ' page ' =>5));Echo (Urlreplace ($url, Array (' PID ' =>10, ' page ' =>5));*//*** URL Rep

; 650) this.width=650; "title=" clip_image006 "style=" border-top:0px; border-right:0px; border-bottom:0px; Float:none; Margin-left:auto; border-left:0px; Display:block; Margin-right:auto "border=" 0 "alt=" clip_image006 "src=" http://s3.51cto.com/wyfs02/M01/58/A2/ Wkiom1s2ffuwxz0xaahdvlcnero029.jpg "" 644 "height=" 357 "/> Flash module supports 1TB,2TB or 4TB, cannot be mixed, cannot add daughter board after deployment, support hot-swapping, however,

partition type file system type start point termination point #创建一个带有文件系统的分区 Move MINOR start point termination point #移动编号为 MINOR partition The name MINOR names #将编号为 MINOR are named "name" print [MINOR] #打印分区表, or partition quit #退出程序 rescue the starting point termination point #挽救临近 The missing partition of Start point, end point Resize MINOR start point termination point #改变位于编号为 the size of the file system in the MINOR partition RM MINOR #删除编号为 MINOR Partition Select Device #选择要编辑的设备

1 newly configured Dell R730XD (with 2 Intel e5-2640 V4 CPUs, 128GB memory, H730 raid cards, 12 4TB SATA drives, 2 495W power supplies), after installing VMware ESXi 6.5.0 (d), Some virtual machines often crash and behave as if the virtual machine freezes in the vsphere client or vsphere WEB client console, the VM cannot be manipulated, and the virtual machine is restarted without responding. Sometimes logged into the ESXi console, pressing F2 or F12

0Max PV 0Cur PV 2ACT PV 2VG Size 71.98GBPE Size 4.00MBTotal PE 18428Alloc pe/size 0/0Free Pe/size 18428/71.98GBVG UUID SARFUJ-WAUI-OD81-VWAC-ALNT-AAFN-JWAPVFWhen multiple physical volumes are combined into a single volume group, LVM does a format-like work on all physical volumes, cutting each physical volume into a piece of space, which is called the PE (physical Extent), and its default size is 4MB.Due to kernel limitations, a logical volume can contain up to 65,536 PE, so the size of a PE de

seen from the hard rules above:A. An inode supports 12 direct pointers, thus representing 12 blocksB. An inode supports an indirect pointer, which is a pointer to a block chunk that acts as a direct pointer to the final block, where is a block of 4K, pointing to a block to occupy 4byte of space, so the indirect pointer of a block can point to 4k/4byte block, that is 2^10C. Double indirect pointers eventually point to: 2^10*2^10=2^20 blocksD. Three indirect pointers final execution: 2^10*2^10*2^