![]() Due to the addition of a file system check that checks for link corruption in VNX OE 05.32 there is a chance that VP LUNs can be taken offline causing a data unavailable (DU) condition after an non-disruptive upgrade (NDU) to VNX 05.32. There is no need to run Recoverycheck on arrays that have never run a version earlier than 05.31.502 or versions earlier than 05.31.502 that never ran FAST VP (Auto-tiering). When planning an NDU from VNX OE 05.31 to VNX OE 05.32 and the array has run a version of 05.31 prior to 05.31.502 (Franklin) with FAST VP (auto-tiering) enabled at some point in its time of operation, it is important to run Recoverycheck on all pools. I found this one in google about emc306064: In emc308955 there is a link to these EMC306064 and emc305043, but i can't log you post here these 2 primus EMC306064 and emc305043 or send me to email. The NTP source is usually the users own time server or Internet NTP source site.Open emc308955, but i need EMC306064 and emc305043. Premium Support +8 (can be dialed by land line only) 09:00-17:30 Sunday Thursday (English & Arabic) 24/7 In English Dell EMC Support 08 24/7 VMWARE. Note this has nothing to do with ESRS, it simply requires an Ethernet connection from the Symmetrix Service Processor/MMCS to the customer network, and visibility for the SP/MMCS on that network to an NTP source. This is used for many of the log timestamps in Symmetrix. It does not synchronize the Symmetrix director clocks on the director boards, all timestamps will then show correct UTC time and not local time. This only synchronizes the Service Processor (SP)/MMCS Windows clock time. Refer to 10699 for details of how to convert UTC to local time. For PowerMaxOS 5978.444.444 and higher, adjusting the NTP synchronization has been deprecated. Contact your EMC Service Representative for details on enabling this feature and quote this article ID. CauseĮMC supports NTP timeserver synchronization for the Symmetrix Service Processor/MMCS clock for DMX-4 models using Enginuity 5773, and all Symmetrix VMAX/VMAX3 models, up to PowerMaxOS 5978.444.444. and look for UTC at the bottom of page to compare it to the location of the Symmetrix. This is automatic in the EMC software.Īll Symmetrix must be set to time zone "UTC" for SSC functionality, otherwise we may lose access to the SP.Įxamine UTC and compare it to locations see World Clock time. (c) Some EMC software converts timestamps that are received from Symmetrix automatically from UTC to local time, using the time zone settings on the customer server running that software. This sets the SP/MMCS clock to the correct time only, not to local time.Īrrays (VMAX All Flash and PowerMax) specifically running PowerMaxOS 5978.444.444 cannot adjust their NTP. (b) The Service Processor/MMCS clock does not synchronize at all by default, but can be set to NTP synchronize using an external NTP source as explained below. There is an ability to synchronize the director clocks to the SP/MMCS clock, this is a manual process and not normally recommended, please contact EMC Support Labs if required. (a) The Symmetrix director clocks synchronize with each other but are not normally synchronized to correct or local time. There is limited support for time synchronization on Symmetrix as follows: This is due to Windows processes keeping, since the SP/MMCS is very busy running other processes, this is common to all Windows clocks that do not NTP synch. Note: The SP or MMCS clock may drift over time. Commands that run on the Director appear in the logs with Director time. For example, when running a script the script progress is shown using the SP or MMCS clock. Each clock is used in Symmetrix scripts, logfiles, and alerts. ![]() There are two main clocks in Symmetrix, the Service Processor or MMCS (Windows) clock, and the Symmetrix Director clock (one on each Director). For Example, a locality might be UTC+1 when it is 15:21 UTC time. Local Time = The clock shows correct UTC time that is converted to local time zone. For example, it shows 15:21 when it is 15:21 UTC time. Some users request these should be showing the correct time, and often request it should show in local time.Ĭorrect time = The clock shows correct UTC time. Users can use SYMCLI or Unisphere to view various logs and alerts from Symmetrix, VMAX, VMAX3, VMAX All Flash, or PowerMax. Symmetrix Service Processor (SP) or MMCS time in Windows is incorrect.Symmetrix log timestamp does not match real time.Can you synchronize the Service Processor or MMCS clock with an NTP server on Symmetrix DMX-3 or 4, VMAX, VMAX3, VMAX All Flash, or PowerMax?
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