emc vnxe

EMC testing consists of 4 main items:1. ESDUsing electrostatic gun test, contact voltage ±6kv, the whole box and the internal visible metal parts are detected;Air discharge positive and negative 8KV, detection of the box and the internal metal parts (such as Board jam body), the special detection of 220V power Plug and switch place.Note: The contact discharge and air discharge test is different from the electrostatic gun tip, contact discharge tip for

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name of the string, the name of the identifier. The way to create a Symbol object is to precede the name or string with a colon:Create a Symbol object, for example:: Foo:test: "ABC" #结果是: "I am a Boy"String is a string, why do you have the name of the string? This is because a string is also an object in Ruby, a string object. Both the structure and the operation and the Symbol object are different.7, in Ruby each object has a unique object identifier (Identifier), you can use the Object_ID met

was built for R. Each disk block size of B, and each block read takes N seconds. To find a tuple in R with a =17954 the estimated optimized cost is A m*n/b B N*log (m/b) C m*n/(2b) D (m+n)/b E log (m*n)/b Which of the following descriptions of Reader/writer locks are/is wrong? A caller cannot upgrade its read lock (already obtained) to write lock B caller can downgrade its write lock (already obtained) to read lock C caller can get read lock if there is no write lock

Failure phenomenon: If it's leovo|, How should EMC storage and hard disk configuration be configured? What's the note? 　　Solution: Please refer to the following instructions: 1, VNX series of storage before the four disk is the system disk, the system will occupy the first four disk per 194GB of capacity, in the VNX2 generation storage, the system capacity accounted for 300GB, this part of the capacity for the user is not available; 2,

find the maximum radiation value;c) Substitution method: The use of ERP (effective transmitting power) to replace, and then converted into field strength values. This is often used in RF testing and is rarely used by conventional EMC. The purpose of the substitution test is to test the radiation of the eut shell, requiring the removal of all detachable cables and the use of a ferrite ring on a non-detachable cable. First, the maximum disturbance valu

There is a two-triangle button behind the SP, as shown in the figure:  If you press the button within 3 seconds, the password is cleared. Press 3 ~ The ip address of the management Port is reset within 10 seconds (the ip address needs to be reset

On the management page, choose Settings> More configuration> Update Software;   Switch to the Language label and click Install Language Pack;  Select the corresponding language pack and click open;  Confirm that the language pack has been uploaded;  

This time the operation is to increase the NAS space:Do not add a new path, only increase the capacity of one tree, it is relatively simple, do not want to do on backup, if you add a new tree, you need to modify the DataList backup script.The steps

Host disk configuration:Create a volume group, create a logic volume, and add physical volume to the logical volume. Is the disk array space identified. Create a file system, that is, format it, usually JFS or jfs2. Mount the created File System

It was indeed the research institute that asked about some very scientific research things,AlgorithmNothing is involved at all.First, ask the three articles on your resume.ArticleOne is about distributed RDF data processing, the other is about query

1. Open the log "XXXXXXX.zip"Find the file SPA_cfg_info.txt.2. Search for the word "seed ."3. You can find the WWN seed information.For example:C: EMCNavisphere6.26.30.1.1.1msgbinNaviCli.exe-np chgwwnseed-----------------------Current WWN Seed:

The core function of drawing a test curve is Cemcview::D rawframecurve () function. The function can draw the test curve according to the test frequency band and the test data of the band in the corresponding position of the logarithmic coordinate

[Byeyear email:[email protected] Reprint please keep this trip]1. Static reactance DisturbanceIdeally, our system is a hollow and airtight metal box, according to the theory of electromagnetic field, the outside of any static power supply can not

Question 1, 2, 3, 5, 8, 13... how much is the number of the 58th series divided by 57th? The Fibonacci series have many magical properties.The progressive value of FN/FN + 1 in a Fibonacci series is (√ 5-1)/2 (Golden division, ≈ 0.618)The

The first is the process,Different kinds of disks (Sata,fc,flah)->disk group->raid->data volume->thin Pool->tdev and Bcvdev (LUNs)Then look at:1) Different kinds of disks called disk, which is visible to the physical hard disk, see:650) this.width=65

1. Use Putty to log onCelerra control station2. Run the following command:/Nas/tools/collect_support_materialsAnd wait a few minutes or so3. The/nas/var/emcsupport/support_materials _ * file will be generated.4. Download the newly generated log and

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Electronic products in the CE certification, often need over-radiation interference ( 1. If the low-frequency exceeded, the general is the input power radiation out, to ensure that the use of DC adapter qualified, and then the PCBA board power

VVNX Professional Storage Device VirtualizationAt the World Congress, EMC announced the Project Liberty Program, which focuses on hardware and software decoupling and virtualization deployment of professional storage devices. Currently, EMC has released the VVNX virtualization Community version and provided free download links. VVNX is a virtualization-based, industry-leading VNX Array (VVNX) that enables u