Multi-bit Ecc Error
Contents |
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about single-bit failure error rate exceeded hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question multi bit ecc error on raid controller _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up correctable memory error rate exceeded for dimm Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Multibit error encountered on Dell Server Memory up vote 3 down vote favorite Dell OpenManage reported the clear memory error dell openmanage following: Memory device status is critical Memory device location: DIMM_B2 Possible memory module event cause:Multi bit error encountered What does this mean? How bad is it? memory dell dell-openmanage share|improve this question asked Sep 5 '13 at 14:02 AXE-Labs 6511716 Call Dell Support, send it back as faulty. –Tom O'Connor Sep 5 '13 at 14:06 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote The event message reference for this was 1404.
Persistent Correctable Memory Error Rate Has Increased For A Memory Device At Location
It indicates a faulty DIMM that should be replaced but from what I read on blogs, the alert often clears and does not come back after reboots. Since it only tripped once for me, I cleared the memory errors using OMSA (dcicfg32.exe) and so far so good. share|improve this answer answered Sep 5 '13 at 14:02 AXE-Labs 6511716 This was a good move - replacement typically isn't warranted after a single occurrence, though I'd seriously consider it if the problem ever returns on that particular DIMM. –JimNim Sep 6 '13 at 14:52 Similarly, I was seeing "Single bit warning error rate exceeded" and "Single bit failure error rate exceeded" on a Linux host. These can be cleared as well but with omconfig: 'omconfig system alertlog action=clear' and 'omconfig system esmlog action=clear'. Lets hope they don't come back or its trash for the dimms. –AXE-Labs Mar 6 '14 at 20:18 Make sure you've got the latest firmware/BIOS too -- I have seen cases where these sorts of errors were spurious and "fixed" by firmware. –Wil Cooley May 19 '14 at 8:09 add a comment| up vote 1 down vote Cause of error according to Dell: "A memory device correction rate exceeded an acceptable value, a memory spare bank was activated, or a multibit ECC error occurred. The system continues to function normally (except for a multibit error). Replace the me
computer data storage that can detect and correct the most common kinds of internal data corruption. ECC memory is used
Multibit Error
in most computers where data corruption cannot be tolerated under any circumstances, correctable memory error log limit reached such as for scientific or financial computing. Typically, ECC memory maintains a memory system immune to single-bit multi-bit memory errors detected on a memory device errors: the data that is read from each word is always the same as the data that had been written to it, even if one or more bits http://serverfault.com/questions/536636/multibit-error-encountered-on-dell-server-memory actually stored have been flipped to the wrong state. Most non-ECC memory cannot detect errors although some non-ECC memory with parity support allows detection but not correction. Contents 1 Problem background 2 Solutions 3 Implementations 4 Cache 5 Registered memory 6 Advantages and disadvantages 7 References 8 External links Problem background[edit] Electrical or magnetic interference inside a computer https://en.wikipedia.org/wiki/ECC_memory system can cause a single bit of dynamic random-access memory (DRAM) to spontaneously flip to the opposite state. It was initially thought that this was mainly due to alpha particles emitted by contaminants in chip packaging material, but research has shown that the majority of one-off soft errors in DRAM chips occur as a result of background radiation, chiefly neutrons from cosmic ray secondaries, which may change the contents of one or more memory cells or interfere with the circuitry used to read or write to them.[2] Hence, the error rates increase rapidly with rising altitude; for example, compared to the sea level, the rate of neutron flux is 3.5 times higher at 1.5km and 300 times higher at 10–12km (the cruising altitude of commercial airplanes).[3] As a result, systems operating at high altitudes require special provision for reliability. As an example, the spacecraft Cassini–Huygens, launched in 1997, contains two identical flight recorders, each with 2.5gigabits of memory in the form of arrays of commercial DRAM chips. Thanks to b
- China India 日本 - Japan 대한민국 - Korea 台灣 - Taiwan Remember my choice Solutions Products & Services Company Partners Support Education Community Security Intelligence Center Knowledge Center - Browse All Missing key: https://kb.juniper.net/index?page=content&id=KB19013&actp=search&viewlocale=en_US&searchid=1234092803522 null Knowledge Base TechNotes Security Advisories Technical Bulletins Pages: 67 [ 1 2 3 4 5 … 67 | Next ] Status ID Title Views Last Updated Unread KB31228 [Space] How to restart JBOSS 36 2 hours ago Unread KB19367 [Archive] [Junos Space] Which Virtual Machine system works with Junos Space 13.3? 58,715 1 day ago Unread KB31081 [SRX] Example – Configure Ethernet Switching in SRX 1,306 1 day ago memory error Unread KB31147 [SRX] Example - Configure Transparent mode on Junos 15.1X49 SRX platform 604 1 day ago Unread KB21476 JTAC Recommended Junos Software Versions 7,461,908 3 days ago Unread KB8533 [ScreenOS] Juniper ScreenOS Firewall LAN-to-LAN Route Based VPN articles 523,343 5 days ago Unread KB21421 [SRX] Configuration Example - Transparent mode on SRX platforms 341,619 5 days ago Unread KB25209 [ScreenOS] TCP session close notification fail with Windows correctable memory error FTP server 11,173 5 days ago Unread KB25207 [ScreenOS] How to configure L2TP on an Android phone 11,882 5 days ago Unread KB4103 [ScreenOS] Configuring WebAuth 101,555 5 days ago Unread KB7315 [ScreenOS] What is the URL for the Deep Inspection Attack database? 139,095 5 days ago Unread KB30670 [Junos Space] ServiceNow 15.1R2 does not support SFTP core file uploads using proxy servers. 230 5 days ago Unread KB30560 NSM GUI client error: 'Could not connect to server' 224 5 days ago Unread KB22742 Can the SRX device notify the sender when a packet is dropped by a policy? 94,112 5 days ago Unread KB11263 Recommended starting and stopping sequences for NSM services 146,266 6 days ago Pages: 67 [ 1 2 3 4 5 … 67 | Next ] User ID Password Login Login assistance PR Search Create a Support Case All Security Advisories Knowledge Center Feedback Report a Security Vulnerability Knowledge Search Help About Juniper Investor Relations Press Releases Newsletters Juniper Offices Resources How to Buy Partner Locator Image Library Visio Templates Security Center Community Forums Blogs Junos Central Social Media Support Technical Documentation Knowledge Base (KB) Software Downloads Product Licensing Contact Support Follow Us Site Map / RSS Feeds