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9
votes
5answers
4k views

Putting Oracle redo logs on DRAM SSD for a heavy write database?

I have a Sun M4000 connected to an EMC CX4-120 array with a write-heavy database. Writes peak at around 1200 IO/s and 12MB/s. According to EMC, I am saturating the write cache on the EMC array. I ...
9
votes
2answers
177 views

EMC VNXe GNU Source Code

Does anyone know where EMC host their GNU source code for VNXe products? We are tired with calling Delhi/Idaho for them to dial in to fix trivial issues and would like to figure out the algorithm of ...
6
votes
3answers
9k views

EMC VNX iSCSI setup - unsure about SP/port assignment

We have a new VNX5300 waiting to get configured, and I need to plan out the network infrastructure before the EMC tech arrives. It has 4x1gbit iSCSI per SP (8 ports in total), and I'd like to get the ...
5
votes
4answers
130 views

What trouble will I have when running a SAN past its support lifetime?

We are replacing a Clariion CX320 SAN because it is old (7.5 years). It has been otherwise very reliable. Yes, we have replaced a lot of disks, battery modules, and maybe even one of the ...
5
votes
2answers
2k views

Inconsistency between LUN ID's

I just added a few LUN's to our new EMC VNX, and the LUN ID's are not consistent.. Screenshot from EMC Unisphere Screenshot from VMWare vSphere If you study the two screenshots carefully, ...
4
votes
1answer
217 views

Does AIX support Advanced Format (4k sector size) SAN LUNs?

I am working with an EMC XtremIO storage array that utilizes SSD devices that use a native 4 KB sector size instead of the traditional 512 B size. I am attaching an IBM AIX 7.1 server to the array. I ...
4
votes
1answer
149 views

UCS FC Adapter Aborts

So here's the scenario, and I'm hoping @Chopper3 can chime in here. For our SAN fabric, we have a pair of Cisco MDS 9513 FC switches with three EMC frames and four Cisco UCS domains directly attached. ...
3
votes
2answers
1k views

Create a raid 6 with 7 drives

I'm trying to create a raid 6 array on a VNX 5100 from EMC, however am unable to create one with 7 drives. We have 8 total, and I immediately carved one out for hot sparing, leaving me 7 data drives. ...
3
votes
3answers
2k views

Upgrading antiquated EMC AX100 SAN Storage

I have an old, old, old EMC AX100 RAID array. It's not being used for anything important, but I would like to use it for testing and lab work. One of the problems is that the OS itself is stored ...
3
votes
2answers
209 views

What is a proper procedure for unplugging fiber chanel from ESXi

In my DC admins have to unplug my FC connection from ESXi5 (from EMC VNX) (temporary, some maintance works). I have never done that before and have some doubt about my own procedure... My first ...
3
votes
3answers
2k views

Linux not picking up new partition correctly on emc pseudo device

We have a database server running oracle rac. We were recently running out of space on the main LUN that it is attached to. I created a new 100GB LUN and concatenated this onto the existing LUN ...
3
votes
3answers
272 views

Disk-to-disk backup to same storage array?

We're looking to get a new SAN, and so we're re-examining our storage, network and backup issues. Our plan is to get an EMC VNXe 3100 with SAS drives for production data, then buy an expansion shelf ...
3
votes
1answer
961 views

Disk-to-tape using Networker and Data Domain

My previous question covered disk-to-disk backup to reduce our backup window, and now I also need to take the disk backup and move it to tape. Is this something I can do with Networker and ...
3
votes
2answers
2k views

Routinely unable to remove qla2xxx module under CentOS

I routinely cannot unload the Qlogic fibre module qla2xxx under CentOS 5 or 6. These machines are running StorNext cvfs, EMC powerpath and hostagent. Nothing else should ever be touching the fibre. ...
3
votes
2answers
111 views

Differences between HP and EMC SAN

I've managed Dell's EMC and Equallogic SANs in the past. I was recently put in charge of a Hewlett-Packard P2000 SAN. HP and EMC use slightly different terminology. I'd like to confirm I understand ...
3
votes
1answer
156 views

vSphere 5 and Powerpath/VE?

I am in the process of setting up our vSphere 5 environment. With previous version of vSphere I have used the native pathing with VMware but I now want to investigate Powerpath/VE since it now works ...
2
votes
4answers
120 views

SAN newbie: Using a server like an ISCSI gateway for a purely FC SAN device

I am very new to SANs and have inherited an old EMC CX300 to play with. The CX300 is purely FC, but I'd like to experiment with ISCSI as well without having to purchase an expensive ISCSI gateway ...
2
votes
4answers
33k views

How to register server HBAs to an EMC Clariion storage system

I have just attached a Solaris box (an old Enterprise 420R) to a Clariion storage array via an Emulex HBA but the Navisphere software is only seeing the system via a hexadecimal reference ID not by ...
2
votes
1answer
530 views

SAN design: File & Block level access?

The short question: can I share file and block level traffic on the same SAN? Perhaps more importantly, should I? The gory details are below... I'm hopefully putting the finishing touches on a new ...
2
votes
1answer
2k views

VMWare VMs to Data Domain storage via EMC Networker backup: Do I need a storage node?

I've got several VMs (Windows Server 2003-2008 R2, application servers, Exchange, SQL, small file servers) residing on ESXi 4.1 hosts. We recently purchased a Data Domain system allowing us to backup ...
2
votes
2answers
1k views

Shell script provisioning of luns on EMC Clariion?

Is there a robust way of scripting (Unix shell) lun provisioning for an EMC Clariion? Navicli doesn't look very reliable, its output is not easy to parse (and just plain weird), and it does not look ...
2
votes
2answers
610 views

What is good book for administration & configuration of Storage logical arrays? [closed]

I am looking for a book which can explain pros and cons of different combination of configurations/policies of storage Arrays and may also suggest some best practices for certain scenarios for e.g. ...
2
votes
1answer
948 views

No LUNs visible on ESXi 5.5 using Brocade 825 connected to EMC VNX 5300

We've just bought a new Dell PowerEdge R620 to replace the oldest of our 3 hosts in our vSphere cluster. The existing hosts are connected to our EMC VNX 5300 SAN using gigabit ethernet which is a ...
2
votes
2answers
447 views

How to setup a “last day of month” schedule in Networker?

I need to set up a "Last day of the month" schedule in EMC Networker V8.0.1 I have actually set up it as: Period: Week Action: skip skip skip skip skip skip skip Override: full last day every month ...
2
votes
3answers
3k views

Linux Kernel Modules Refuses to Load

I have a server running RHEL 5.5 with EMC PowerPath installed. Due to the security requirement, I had to upgrade the kernel to a newer version. Unfortunately, I was not aware of the impact of the ...
2
votes
1answer
253 views

using EMC branded disk array with Dell/EMC branded CX3-20 head unit

Are there any problems or gotchas with using an EMC branded DAE3P with a Dell/EMC branded Clariion SAN? Obviously getting support for the array would be problematic, but other than that is there ...
2
votes
2answers
631 views

NDMP NAS for HP EVA4400 SAN

We use EMC Celerra filer for our EMC array and it supports NDMP.n remote site we have EVA4400 HP SAN and it seems that our only option for NAS is Windows Storage Option. What if we want to use ...
2
votes
1answer
347 views

Filer for HP EVA 4400 Array

We are planning moving some of our infrastructure to the dataceneter.Most of our hardware is EMC/Dell and datacenter uses HP. One of the components we use is EMC Celerra NS20 Filer connected to the ...
2
votes
1answer
878 views

EMC Celerra and Access-based Enumeration

I have a few CIFS shares for Windows on our Celerra, and I've run the EMCABE tool (in enable mode) on one of our CIFS virtual servers. When I check if ABE is enabled using the same tool, it comes back ...
1
vote
3answers
1k views

RAID 10 or RAID 50 on 16x 900 GB 10K SFF disks

What type of RAID would you recommend for a single storage segment across 16 of 900 GB 10K SAS SFF disks on an EMC VNX 5100 storage unit? Disk 17 is a hot-spare. RAID 10, RAID 50 or something else? ...
1
vote
2answers
2k views

Where are the Kerberos time outs in Windows 2008R2?

We have a DFS share that redirects users to a EMC CIFS share. Several end users are unable to access it and get the following Kerberos Security warning: The System Detected an attempt to ...
1
vote
2answers
230 views

What could be the best practice while allocating so that I/O performance is high

I have a question on planning. Recently, I got a request to create 2 625GB Luns (clariion cx-240), FC Connected, to ESX server 4.0 (four new hosts). I don't know the application they would be running. ...
1
vote
3answers
1k views

Exchange Management Console Missing Tabs

I am trying to set up exchange 2010, I want to configure the incoming mail but all the information I can find about says there should be tabs on the middle pane when I select hub transport.. I get ...
1
vote
2answers
2k views

EMC Celerra - cliff's notes for dummies?

I just bought my first EMC Celerra NX4. I'm starting to configure it and have a few questions: What is Celerra Network Server? What are the Celerra iscsi utilities? Is there a very basic "how to" ...
1
vote
5answers
11k views

EMC PowerPath or MultiPath?

We are using a SAN for our datastorage. I recently got the SAN connected to a CentOS 5.3 server by using the EMC PowerPath software along with the Navisphere Agent running on CentOS. However I have ...
1
vote
1answer
704 views

VSPEX vs vBlock [closed]

I've been reading about storage and the next two solutions (reference architecture / converged) made me a little confused whether is more advantageous to go with one of another assuming the following ...
1
vote
1answer
178 views

Directly connected HP server and CX4 with fibre

I have direcly connected (with fibre) a HP ProLiant BL460c G7 with a EMC CX4. I installed VMWare Esxi 5.0. The problem is that cx4 cannot connect to the blade. It seems that there is no connectivity ...
1
vote
3answers
2k views

Maximum size of VMDK to support large NTFS filesystem in guest

I have a need to support an 8TB filesystem within a Win2k8 guest system running on VMWare. From what I've read online, the maximum size VMDK I can create is 2T, is this still the case? Will I need ...
1
vote
4answers
4k views

Exchange 2010 EMC connects to wrong server

I have an Exchange 2010 organization installed at two sites with one server at each site. I set up my local site first. Exchange Management Console always chooses to connect to the remote server ...
1
vote
3answers
95 views

Replicate EMC LUN to AWS. Is it possible?

Is it possible to replicate a LUN from our EMC VNX5300 to Amazon Web Services? This would be for a disaster recovery scenario. I've talked to AWS and they said to talk to EMC. I've talked to several ...
1
vote
1answer
3k views

How do I disconnect users from a file stored on a NAS?

We recently migrated our file servers from a Windows file server to an EMC VNXe NAS device. Previously, when a user needed into a critical file that someone else had open and the situation warranted, ...
1
vote
1answer
366 views

EMC-branded DS24-M2 McData: Where get and what firmware?

I (will) get a EMC Symmetrix DS24-M2 FC Switch which is a branded McData 4500. I'm unsure how/if it's possible to update the box to the latest firmware without an official service contract anymore. ...
1
vote
2answers
909 views

EMC CLARiiON - merge raid groups, retain LUN's

Not sure this is possible, but... Let's say you have two raid groups, each striped across 6 disks. Group 1 has 2 LUNs, Group 2 has two LUNs - is it possible to merge the raid groups (i.e. gain ...
1
vote
3answers
1k views

Symmetrix gatekeepers on Solaris 10

I have some Solaris machines that are connected to EMC Symmetrix for SAN storage. Apparently the Symm has a gatekeeper device that is used with the symmetrix CLI. We don't need the CLI, but I have ...
1
vote
0answers
42 views

Does a dead LUN path cause an increase in I/O times on the remaining LUN path(s)?

We use an EMC SAN appliance. There are 2 'paths' from the cluster to the SAN. Today we experienced that one of the LUN paths was 'dead' (as reported in the windows event logs). Presumably the ...
1
vote
0answers
131 views

Best practices in connecting EMC VNX iSCSI storage [closed]

We have an EMC VNX5200 with 2 service processors, each having 4 iSCSI ports, 1 data mover (with 4 ports) and a control station, all of which is plugged into two stacked switches. What are the ...
1
vote
0answers
293 views

How to change / replace a failed “system” disk on EMC Clariion CX500?

On the first DAE, the first 5 disks are considered "special" because they host the OS of the storage array. One of those 5 disks is faulty : what is the procedure to change it? By the way, what ...
1
vote
1answer
510 views

EMC ESRS stops working when it is VMotioned

EMC is on site and told me: The ESRS SAN monitoring solution will cease to function if that host is VMotioned In case anyone doesn't know, the ESRS is a dial home solution that works over IP. ...
1
vote
1answer
302 views

Clariion CX300: Removing system disks from a RAID group?

I have a raid group that includes every disk my DPE2. I want to remove the system disks (0-4) from this RAID group. From what I read I should i put them in their own RAID group and avoid storing ...
1
vote
0answers
103 views

Using EMC DAEs standalone

I've got a number of EMC DAEs filled with drives, for free. I'd love to use them, as they total to around 30TB, with possibly more available from the same recycling facility. As of right now I can ...