Sun Cluster requires external storage or it works without that also

Hi,
I have to implement sun clustering on V880 servers but we have only purchased single external storage box (storedge 3510) but we need to prepare 3 clusters of two nodes each ( means in total 6 servers).
So my question is whether it is possible to create a cluster without the external storage device.
Regards
Khushvinder

Khush,
If you refer back to my earlier posting,its confimed that you need a external storage for a 2 node cluster.The external storage acts as the quorum device.
Ofcourse you can get away with external storage provided you have support with Sun.Sun has got an internal hack to get away with multihost ,again it depends whether they are willing to share it.(My guess they wouldn`t...they can sell more storage instead)

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Sun Cluster and EMC AX150 does not work

Hi All,
I tried to setup a Sun Cluster 3.2 (2x T2000) with an EMC AX 150 Storage. the device paths are highly instable and breaking down time and again. Tried to install Powerpath software of EMC but this time the did-devices are not recognized by Sun Cluster.
Any help will be appriciated.
P.S: does anybody know whether a MSA 1000 will work with Sun Cluster 3.2.
Regards

Looking at the EMC link on http://www.sun.com/software/cluster/osp/ it doesn't look like these storage systems have been tested by EMC and so may or may not work.
You could try using Sun's MPxIO rather than PowerPath. MPxIO is included in Solaris for free. Again, it may or may not work. You are unlikely to get support on either configuration until EMC has done the prerequisite engineering testing to resolve the sort of issues you are currently seeing.
Regards,
Tim
---

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Last edited by aglarond (2009-02-10 03:24:01)

damjan wrote:BTW, what's the limit on your card and what driver are you using?
It's giving me a 1600x1200 limit, no matter how far up I jack the virtual command in xorg. That's better than the 1024x1024 I was getting before the change, though.
Also, I'm using the GPL'd radeon kernel module (I assume it comes bundled with the kernel since I don't remember loading it) and the radeon driver from xf86-video-ati. I see that package also has an ati_drv.so, but I haven't used it.
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External storage for early 08 mac pro for video storage and editing

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olderguy1 wrote:
Do you mean 2x2TB and 2x3TB for a total internal capacity of 10TBs? Are you running Snow Leopard or something else? Actually, I took it to an authorized repair facility who ran checks and said nothing is wrong with the hardware.
Yes, I've got a total of to TB and I'm running Snow Leopard. If your hardware checks out, that pretty much makes it a software problem,,, reinstall the OS?
Does the High Point Technologies SATA3 PCIe connect to eternal drive enclosures or does it somehow connect to drives in some of your four internal bays?
Highpoint makes several RocketRAID 2700 series SATA3 controllers for Mac with external mini-SAS connectors, probably the cleanest/least expensive external hook-up. They also offer a combo internal/external board that (for marketing reasons) is listed as not working for internals with Mac Pro. I believe that this is due to pressure from Apple (who apparently does some business with High Point Tech) but to the best of my knowledge it will. Technically, the "not supported" statement is true since all the internal bays are tied to the motherboard SATA 2 controller, but this can be remedied with a special cable. HOWEVER... the boards are not bootable, so your system disk needs to be on the motherboard controller.
In truth, I bought one of their 8-port "internal only" boards designated for PC only and flashed it so the Mac Pro sees it as a 2722 board, so I have 8 internal ports. I'm not recommending you do the same unless you're pretty geeky, but the 2721 would give you half-and-half or the 2722 would give you 8 external with no mods to the board.

Apple TV - sync with external storage?

I bought an Apple TV about 2 weeks and have been pretty happy with it. I have lots of TV shows saved on an external drive so as not to completely fill up my iMac. The external drive is connected to my iMac at all times.
Is there a way that I can sync Apple TV to this external storage device? Or watch TV shows from the external hard drive without moving them back to the iMac and then syncing with the Apple TV? Or is there a way I can leave TV shows on the Apple TV without also copying them to my iMac? My Apple TV is 160gb so there must be a way of using that memory without jamming up my iMac.
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Elizabeth

Emsullivan wrote:
I bought an Apple TV about 2 weeks and have been pretty happy with it. I have lots of TV shows saved on an external drive so as not to completely fill up my iMac. The external drive is connected to my iMac at all times.
Next thing to appreciate is how iTunes stores files.
The iTunes library, usually called iTunes, contains various sub-folders and files.
Some of these files contain the library database, artwork etc.
There'll be an iTunes Music folder which contains the media copied into iTunes on import.
There may be old library database backups, and a folder for iPhone apps if you have one.
There may be other folders for other sorts of user.
Is there a way that I can sync Apple TV to this external storage device?
Not without the files being known to iTunes - all communication with AppleTV in terms of local network file transfers works through iTunes.
Or watch TV shows from the external hard drive without moving them back to the iMac and then syncing with the Apple TV?
Yes, this is possible.
When you import a CD it will automatically store in the iTunes Music folder. You can see where file are by selecting Show in Finder after a right click on the entry in iTunes.
If you import a file from somewhere other than CD however there is a Preference under Advanced>General Tab which decides if a copy is placed in the iTunes Music folder or not. If you deselect the copy option iTunes simply stores a reference to the file not the file itself.
So, if you deselect copy you could just drag the files from the external drive onto an iTunes window and they'll be available for syncing/streaming but still live on the external drive.
This is probably your simplest option. There is a keyboard shortcut which from memory is the option key which will temporarily not copy an added file when dragged to iTunes.
Or is there a way I can leave TV shows on the Apple TV without also copying them to my iMac?
Using the do not copy option in iTunes will achieve this with files on the external drive not on the iMac.
There is no manual drag and drop type way of filling AppleTV with media which is a shame if you don't have the external drive.
You can in fact delete the file in the itunes Music folder manually from Finder and this will not remove them from the database - iTunes will complain if you try to play them or stream them but if synced to AppleTv you can play them from there. I do not recommend this approach, and you must not delete the file entry from iTunes or it will then also delete from AppleTV.
My Apple TV is 160gb so there must be a way of using that memory without jamming up my iMac.
The 160GB is mainly indtended to allow you to have more stuff on AppleTV so that youd odn't need itunes running all the time, or perhaps ifyour network doesn't allow smooth steaming.
It is not a backup and must not be regarded as external storage - many people assume it's storage and then lose their files when their computer's hard drive or external fails if they have no backup. Sorry to repeat this but it's important.
I've looked in the manual but haven't found an answer to this situation.
It's not particularly detailed is it.
Hope that helps.
There are some other options to consider too.
AC

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Can someone explain why Sun Cluster requires such large subnets for its interconnects ?
Yes, they use non-routable IPs but there are some cases where even these collide with corporate admin networks. I had one cluster I had to use that Microsoft automatic IP nework range to avoid IP conflict with corporate networks.

You dont have to stick to default IP's or subnet . You can change to whatever IP's you need. Whatever subnet mask you need. Even change the private names.
You can do all this during install or even after install.
Read the cluster install doc at docs.sun.com

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Recently one of cluster server crashed without backup. I had to reinstall all of Solaris 8 and software such as veritas volume manager and oracle, Sun Cluster 3.0. Unfortunately, it is said that if one of both cluster servers was down, I have to reinstall both machines. Is it true?
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Thxs

I think I am having same problem as you before. If possible, could you please give me some instructions. I am just a beginner of Sun Cluster Server. According to your sugguestion, it looks so complex that I can handle. Presently, I have installed volumn manager and oracle on the broken node. Can you instruct me what's next? The more details the better.
Thanks in advance.

2004 Ipod - upgraded software now requires external power source

Why!?
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Information about Sun Cluster 3.1 5Q4 and Storage Foundation 4.1

Hi,
I have 2 Sunfire V440 with Solaris 9 last release 9/05 with last cluster patchs.. , Qlogic HBA fibre card on a seven disks shared on a Emc Clariion cx500. I have installed and configured Sun cluster 3.1 and Veritas Storage Foundation 4.1 MP1. My problems is when i run format wcommand on each node, I see the disks in a different order and veritas SF (4.1) is also picking up the disks in a different order.
1. Storage Foundation 4.1 is compatible with Sun cluster 3.1 2005Q4?????
2. Do you have a how to or other procedure for Storage foundation 4.1 with Sun Cluster 3.1.
I'm very confuse with veritas Storage foundation
Thanks!
J-F Aubin

This combination does not work today, but it will be available later.
Since Sun and Veritas are two separate companies, it takes more
time than expected to synchronize releases. Products supported by
Sun for Sun Cluster installation undergo extensive testing, which also
takes time.
-- richard

I just received a new macbook pro. I am looking for a usb3 external storage 500 GB drive. Some manufacturers of drives aren't for sure their drive will work with the new lion system. Does anybody have any suggestions for drives that will workw

I just received a new macbook pro. I am looking for a usb3 external storage 500 GB drive. Some manufacturers of drives aren't for sure their drive will work with the new system. Does anybody have any suggestions for drives that will workw

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Clinton

Sun Cluster 3.3 Mirror 2 SAN storages (storagetek) with SVM

Hello all,
I would like to know if you have any best practice for mirroring two storage systems with svm on sun cluster without corrupting/loosing data from the storages.
I currently have enabled the multipath on the fc (stmsboot) after that configure the cluster and created the SVM mirror with the did devices.
I have some issues that i wan to know if there's gonna be any problem.
a) 4 quorum votes. As i have two (2) nodes and 2 storages that i need to know which is up i have 4 votes, so in order the cluster to start needs 3 votes. Is there any solution on this like cldevice combine ?
b) The mirror is on SVM level so when a failover happens the metasets go to the other node. Is there any change to start the mirror from the second SAN insteand of the first and have any kind of corruption? Is there someway to better protect the storage ?
c) The storagetek has option for snapshots, is there a good way of using this feature or not?
d) Is there any problem by failling over global filesystems (global option in mount)? The only thing that may write in this filesystem is the application itself that belongs in the same resource group, so when it will need to fail over it will stop all the proccesses accessing this filesystem and it would be ok to unmount it.
Best regards to all of you,
PiT

Thank you very much for your answers Tim, they are really very helpfull, i only have some comments on them to be fully answered.
a) Its all answered to me. I thing that i will add the vote from only one storage and if the storage goes down, i will tell the customer to check the quorum status and add the second storage as QD. The quorum server is not a bad idea, but if the network is down for some reason i thing that bad thing will happen so i dont wont to relly on that.
b) I think you are clear enough.
c) I thing you are clear enough! (just as i thought this would happen for the snapshots....)
d) Finally, if this filesystem is in a metadisk that is been started from the first node and the second node is proxing to the first node for the metaset disks, is there any change to lock the filesystem/ metaset group and don't be able to take it?
Thanks in advance,
Pit
(I will also look the document you mention, a lot of thanks)

Sun Cluster 3.2 without share storage. (Sun StorageTek Availability Suite)

Hi all.
I have two node sun cluster.
I am configured and installed AVS on this nodes. (AVS Remote mirror replication)
AVS working fine. But I don't understand how integrate it in cluster.
What did I do:
Created remote mirror with AVS.
v210-node1# sndradm -P
/dev/rdsk/c1t1d0s1      ->      v210-node0:/dev/rdsk/c1t1d0s1
autosync: on, max q writes: 4096, max q fbas: 16384, async threads: 2, mode: sync, group: AVS_TEST_GRP, state: replicating
v210-node1#
v210-node0# sndradm -P
/dev/rdsk/c1t1d0s1      <-      v210-node1:/dev/rdsk/c1t1d0s1
autosync: on, max q writes: 4096, max q fbas: 16384, async threads: 2, mode: sync, group: AVS_TEST_GRP, state: replicating
v210-node0#   Created resource group in Sun Cluster:
v210-node0# clrg status avs_test_rg
=== Cluster Resource Groups ===
Group Name       Node Name       Suspended      Status
avs_test_rg      v210-node0      No             Offline
                 v210-node1      No             Online
v210-node0# Created SUNW.HAStoragePlus resource with AVS device:
v210-node0# cat /etc/vfstab | grep avs
/dev/global/dsk/d11s1 /dev/global/rdsk/d11s1 /zones/avs_test ufs 2 no logging
v210-node0#
v210-node0# clrs show avs_test_hastorageplus_rs
=== Resources ===
Resource:                                       avs_test_hastorageplus_rs
Type:                                            SUNW.HAStoragePlus:6
Type_version:                                    6
Group:                                           avs_test_rg
R_description:
Resource_project_name:                           default
Enabled{v210-node0}:                             True
Enabled{v210-node1}:                             True
Monitored{v210-node0}:                           True
Monitored{v210-node1}:                           True
v210-node0# In default all work fine.
But if i need switch RG on second node - I have problem.
v210-node0# clrs status avs_test_hastorageplus_rs
=== Cluster Resources ===
Resource Name               Node Name    State     Status Message
avs_test_hastorageplus_rs   v210-node0   Offline   Offline
                            v210-node1   Online    Online
v210-node0#
v210-node0# clrg switch -n v210-node0 avs_test_rg
clrg: (C748634) Resource group avs_test_rg failed to start on chosen node and might fail over to other node(s)
v210-node0# If I change state in logging - all work.
v210-node0# sndradm -C local -l
Put Remote Mirror into logging mode? (Y/N) [N]: Y
v210-node0# clrg switch -n v210-node0 avs_test_rg
v210-node0# clrs status avs_test_hastorageplus_rs
=== Cluster Resources ===
Resource Name               Node Name    State     Status Message
avs_test_hastorageplus_rs   v210-node0   Online    Online
                            v210-node1   Offline   Offline
v210-node0# How can I do this without creating SC Agent for it?
Anatoly S. Zimin

Normally you use AVS to replicate data from one Solaris Cluster to another. Can you just clarify whether you are replicating to another cluster or trying to do it between a single cluster's nodes? If it is the latter, then this is not something that Sun officially support (IIRC) - rather it is something that has been developed in the open source community. As such it will not be documented in the Sun main SC documentation set. Furthermore, support and or questions for it should be directed to the author of the module.
Regards,
Tim
---

Does oracle clusterware and oracle RAC require sun cluster

Hi,
I have to setup oracle RAC on solaris 10 SPARC. so is it necessary to install sun cluster 3.2, QFS file system on solaris
I have 2 sun sparc servers with solaris 10 installed on it and shared LUN setup(SAN disk RAID 5 partitions)
Have to have 2 node setup for RAC load balancing.
Regards
Prakash

Hi Prakash,
very interesting point:
As per oracle clusterware documents the cluster manager support is only for windows and linux.
In case of solaris SPARC will the cluster manager get configured ???
The term "Cluster Manager" refers to a "cluster manager" that Oracle used in 9i times and this one was indeed only available on Linux / Windows.
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Now, you might see other dependencies which can be resolved by Sun Cluster. I cannot comment on those.
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Hope that helps. Thanks,
Markus

Veritas required for Oracle RAC on Sun Cluster v3?

Hi,
We are planning a 2 node Oracle 9i RAC cluster on Sun Cluster 3.
Can you please explain these 2 questions?
1)
If we have a hardware disk array RAID controller with LUNs etc, then why do we need to have Veritas Volume Manager (VxVM) if all the LUNS are configured at a hardware level?
2)
Do we need to have VxFS? All our Oracle database files will be on raw partitions.
Thanks,
Steve

> We are planning a 2 node Oracle 9i RAC cluster on Sun
Cluster 3.Good. This is a popular configuration.
Can you please explain these 2 questions?
1)
If we have a hardware disk array RAID controller with
LUNs etc, then why do we need to have Veritas Volume
Manager (VxVM) if all the LUNS are configured at a
hardware level?VxVM is not required to run RAC. VxVM has an option (separately
licensable) which is specifically designed for OPS/RAC. But if
you have a highly reliable, multi-pathed, hardware RAID platform,
you are not required to have VxVM.
2)
Do we need to have VxFS? All our Oracle database
files will be on raw partitions.No.
IMHO, simplify is a good philosophy. Adding more software
and layers into a highly available design will tend to reduce
the availability. So, if you are going for maximum availabiliity,
you will want to avoid over-complicating the design. KISS.
In the case of RAC, or Oracle in general, many people do use
raw and Oracle has the ability to manage data in raw devices
pretty well. Oracle 10g further improves along these lines.
A tenet in the design of highly available systems is to keep
the data management as close to the application as possible.
Oracle, and especially 10g, are following this tenet. The only
danger here is that they could try to get too clever, and end up
following policies which are suboptimal as the underlying
technologies change. But even in this case, the policy is
coming from the application rather than the supporting platform.
-- richard

Sun Cluster requires external storage or it works without that also

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