dwdm 100g

will continue to emerge, and the result will be a significant increase in the volume of business. It can be expected that in the next few years, the operator's network will be at least in the following directions. (1) The growth rate of data traffic will not be stopped. In order to adapt to this kind of demand, in the network structure, the IP/DWDM still is the mainstream. Due to the construction of the main cable in the previous few years, there i

Test machine Various error, create a directory are error, DF looked at a bit, found Volgroup-lv_root 100%, virtual Disk full, how to do it1, resolution process# df-h//View Partitions# Umount/home//un-mount# e2fsck-f/dev/mapper/volgroup-lv_home//Partition Detection# resize2fs-p/dev/mapper/volgroup-lv_home 100G//Set the Lv_home virtual partition to 100G# Mount/home//Mount Home# df-h//View Partitions# lvreduce

100 G Oct 13:26 example_table.ibdThe table is 100G so large. Using the drop table directly to complete the delete action, the statement will run for a very long time. You can then delete it by setting a hard link on the appropriate data file for that table.sudo ln/data/mysql/testdb/example_table.ibd/data/mysql/testdb/example_table.ibd.hdlksudo ls -lh/data/mysql/ TESTDB-RW-RW----1 mysql mysql 8.4K Oct 13:26 example_table.frm-rw-rw----2 mysql mysql

statement.Deleting a database does not remove the temporary tables created in the library. Temporary tables are automatically cleaned or displayed by the drop temporary table at the end of the session.Considerations for deleting large tablesFor table deletions, because the INNODB engine maintains a global exclusive lock at the table cache level until the drop table is complete, other operations on the table are stuck. For larger tables, the drop table operation can take a long time, so an effec

BandwidthFoshan single and double line: Q9300 4G memory (10g--100g, 120G, 150G, unlimited defense) 20MBandwidthI5 8G memory (can rise to 16G) (10g--100g, 120G, 150G, infinity) Defense 20MBandwidthDell 8-Core 16G memory (10g--100g, 120G, 150G, infinity) Defense 20M Bandwidth⑤, Defense:Single-line 10G 20G 30G 60G 90G, more than the G-port bandwidth of the Unlimite

QQ mailbox in the super-large attachment upload function, 115 network disk in the large attachment upload control, Huawei Network Disk (Dbank), Jinshan fast disk they are all using the control to achieve large file upload function. This is done primarily to relieve server pressure, save server memory, and improve the user experience. If, only part of the internal personnel, use, directly open FTP.FTP is also available for most people. FTP can install extended write scripts to support the datab

Linux LVM logical volume management adjust partition size Test Machine all kinds of errors, create a directory are reported error, df looked at it, found that VolGroup-lv_root 100%, the virtual disk is full, what should I do? 1. Solution Process # Df-h // view partitions# Umount/home // unmount# E2fsck-f/dev/mapper/VolGroup-lv_home // partition Detection# Resize2fs-p/dev/mapper/VolGroup-lv_home 100G // set lv_home virtual partition to

Kingsoft server is not very good, the 1th is CentOS 6.5 (64-bit) and lnmp.org 1.3 download package is incompatible, MySQL and nginx a large probability of installation failure.The 2nd is the purchase time database can only provide 100G, and this 100G also need to be late mount up, here mainly said this mount process. (The main purpose of this article is to purchase a Zabbix server side, need a large capacit

One or more meals a day to adhere to the right amount of the principle We should arrange the time and quantity of meals and eat regularly. In general, breakfast is arranged in 6:30~8:30, lunch is arranged in 11:30~13:30, dinner is in 18:00~20:00; the energy provided by breakfast should account for the total energy of the whole day 25%~30%, the lunch should occupy the 30%~40% and the dinner should be 30%~40%. Food distribution for meals a day Breakfast should be arranged in half an hour after

of the disk, if there is a different space size, different read and write speed of the disk, the array system will be small space, low speed as the standard, large space, high speed disk compatibility. For example: 100g,50g 2 disk to do RAID0, get space for 50g*2 = 100G.Space calculation formula for raid:RAID0 Space: Disk Size * NRAID1 Space: (Disk Size * N)/2RAID5 Space: ((N-1)/N) * (disk size * N) = (N-1) * Disk sizeRAID10 Space: (Disk size * N/2)/

Chicken Willow 150g 116*1.5 174 card Orange 100g 43 card Orange 100g 43 card Statistics: 260 million cards Remaining: 1440 major cards Buy Electronic Scales --------------------------------------------------- Cabbage 100g 15 60 calories 100g 202 606 calories Rice 200g 116 232 calories Total 898 major cards R

;>> Stilton = Stilton ('100g ')>>> Print 'weight' in Cheese. _ dict __False>>> Print 'weight' in Stilton. _ dict __False>>> Print 'weight' in stilton. _ dict __True No matter where _ init _ () is defined, stilton. _ dict _ has nothing to do with _ dict _ of the class.Cheese. weight and Stilton. weight both have errors because they cannot touch the namespace of the instance. WhileThe search sequence of stilton. weight is stilton. _ dict _ => Stilton. _

Test machine A variety of errors, create a directory are error, DF looked, found Volgroup-lv_root 100%, virtual Disk full, how to do? 1, the settlement process# Df-h//view partitions# Umount/home//Cancellation mount# e2fsck-f/dev/mapper/volgroup-lv_home//Zoning detection# resize2fs-p/dev/mapper/volgroup-lv_home 100G//Set Lv_home virtual partition to 100G# Mount/home//Mount Home# Df-h//view partitions# lvre

down the database may reach 100G to 200G. The main effects due to database enlargement are as follows: 1, resulting in higher disk storage costs; a 200G database plus backup requires at least 1 T disks to be barely enough. 2, the database performance degradation. 3, the potential risk of database failure increased. (although there is no direct evidence, but simple reasoning can draw that conclusion) 4, the time to back up the database is too long. Co