SAN Replication?

Hi everyone!
I'm in need of SAN-to-SAN replication software to work with EMC and HP SANs. Basically, something similar to Symantec Volume Replicator or HP's Continuous Access. Does Oracle have anything that will work that's basically "SAN-agnostic?"

I've used Business Copy (BC) on an HP XP1024 array and imported a copy of a ZFS storage pool on a different host using something like ( Veritas Volume Mgr example ) :
zpool import -d /dev/vx/dsk/hpxpdg1 -f poolHPXP0

Similar Messages

Connectivity for SAN replication

I am a newbie in the SAN world so hope am asking the right questions.
We are looking into replacing our aging SAN. As part of the replacement, managemnt is thinking of placing a secondary SAN at one of our remote locations for backup & DR purposes.
My question revolves around providing connectivity between the two SANS. I have been asked to look into a dedicated point-to-point connection for the SAN replication. Not counting the actual SAN hardware, what other hardware would I need? Am I bacically building an independent network for this? Why this route instead of over our corporate WAN? Any good recommended reading for learning about the SAN world?
Brent

Hi, Brent,
I agree with Mike. I originally posted this before I saw his reply.
Here are a couple of good Cisco-specific document to start with:
http://www.cisco.com/en/US/solutions/ns340/ns517/ns224/ns378/net_design_guidance0900aecd800ed146.pdf
http://www.cisco.com/go/storage
Your options are either native FC over some sort of fiber transport (dark fiber, CWDM, DWDM, SONET) or FCIP over a WAN link. Native FC is usually for synchronous replication for distances up to 200 km for large bandwidth requirements. FCIP is usually for asynchronous replication at longer distances with less bandwidth. The transport largely dictates the hardware. FCIP is generally cheaper.
If you go the FCIP route, a dedicated link is preferable to make sure replication traffic has predictable latency and bandwidth, but you can share an existing link if you have to. Basic QOS is available in this case. Also, FCIP on Cisco devices has special capabilities to help you get the most out of your bandwidth (TCP optimizations, compression, write acceleration, etc.).
Regards,
Phil Lowden

SAN replication from ASM to NON ASM

Hi,
We have a requirement:
PROD Site: 2 RAC nodes on ASM with 11g Rel 2. ASM will be on SAN.
Requirement: For DR Site: create non ASM single database on which SAN from PROD will be replicated. No Data Guard.
Question: Can we do this? Will standalone DB will be able to read all the data files, as on DR Site non ASM DB will be created. What Oracle recommends? Becuase another solution is that we can create some cron tab job and it will aply archive log files after some interval o DR site database.
Regards.

You cannot do it with SAN replication, because SAN replication will give you exact replica of the LUN on storage level, so you will need ASM to read it.
You can "simulate" data guard. Restore database backup on standalone database file system (you need to explicitly set the restore destination directory, otherwise rman will try to restore the database on ASM) and apply archivelogs on a schedule.

SAN Replication with ZFS

We have Solaris 10 Oracle database servers, with ZFS filesystems on an HP XP SAN array. We are going to replicate the data to a backup data center using the XP array itself. We will build identical servers at the backup data center. My question is, how will the servers at the backup data center recognize the data once it is replicated by the SAN? Will I simply need to import the zpool, and is it that simple? I can't find any documentation on the topic. Thanks.

I've used Business Copy (BC) on an HP XP1024 array and imported a copy of a ZFS storage pool on a different host using something like ( Veritas Volume Mgr example ) :
zpool import -d /dev/vx/dsk/hpxpdg1 -f poolHPXP0

Oracle 11gR2 - RAC to RAC replication via SAN

Hi,
Anyone there experience before on Oracle 11gr2 RAC to RAC via EMC SRDF setup? Please share some information and also provide links if there is any white paper/technical paper.
Thanks
Edited by: 858013 on May 11, 2011 12:10 AM

In SAN replication, the database instance at the remote site cannot be started up and running as the SAN cannot allow read-write access to the filesystems.
When the primary site goes down, you simply issue a STARTUP at the remote site --- provided that the SAN replication has guaranteed write ordering, else you will have a corrupted database. That is why it is very important to talk to your SAN storage vendors to get the replication setup correctly.
(If the replication is correctly done, the STARTUP will "see" that the database files are fuzzy and that the onlin redo log files are available and attempt an Instance Recovery -- as if the instance / server had crashed or suffered a shutdown abort).
Hemant K Chitale

Oracle 11g Dataguard vs SAN

Dear Expert
Hi,
I have question about Oracle Dataguard. If user already setup Oracle Dataguard. Now want to change to use SAN replication. Any configuration change need to make at DB level. Tks
Regard
Liang

can you tell me in brief what is your requirement. you want to keep standby in SAN?

SQL Server 2008 R2 and storage replication

Hello All !
On a Production site, I have a SQL Server 2008 R2 for a fat application. On a DRP site, I have the same SQL Server 2008 R2 fat application.
The production and DRP sites are interconnected with a physical SAN storage (synchrone replication). SAN LUNs are synchronous replicated (Data + logs).
In this case, is it necessary to keep logshipping beetween the 2 sites or the LUNs replication is sufficient ?
Thanks for advance for your ideas / help - Regards - Have a nice day ! RHUM2

<<In this case, is it necessary to keep logshipping beetween the 2 sites or the LUNs replication is sufficient ?>>
That question is impossible for us to answer, since we don't know your requirements (SLA etc). But if you re-phrase your question, we can give feeback with which you hopefully can make that decision:
What can log ahipping protect me from which SAN replication can't? I can think of a couple of things (others are free to chime in):
Corruption at the page level. SAN replication give you a binary image of the data. If a page is corrupt at site A, it will be corrupt at site B. Log shipping work by retorting transaction log backups.
Delayed log restore. If a problem happens at site A, you can decide to have delayed log restores at site be and restore a log backup until just prior to the accident.
Both above assumes that you know what you are doing have basically have planned for these things. But technically, they are examples of things that log shipping allows for.
Tibor Karaszi, SQL Server MVP |
web | blog

EMC RecoverPoint and storage replication

Hi,
I just need some feedback or inputs regarding DR. Can you help me sharing on your thoughts about the EMC Recover point to do a storage level replication for Oracle Database.
DB Info: Oracle 11Gr2 on Solaris 10 with 2 node racs on ASM on ZFS Storage.
Best Regards
Maran.

<<In this case, is it necessary to keep logshipping beetween the 2 sites or the LUNs replication is sufficient ?>>
That question is impossible for us to answer, since we don't know your requirements (SLA etc). But if you re-phrase your question, we can give feeback with which you hopefully can make that decision:
What can log ahipping protect me from which SAN replication can't? I can think of a couple of things (others are free to chime in):
Corruption at the page level. SAN replication give you a binary image of the data. If a page is corrupt at site A, it will be corrupt at site B. Log shipping work by retorting transaction log backups.
Delayed log restore. If a problem happens at site A, you can decide to have delayed log restores at site be and restore a log backup until just prior to the accident.
Both above assumes that you know what you are doing have basically have planned for these things. But technically, they are examples of things that log shipping allows for.
Tibor Karaszi, SQL Server MVP |
web | blog

SAP NetWeaver 7.01 Java installation on MSCS and Log shipping for DR

Hi Experts,
Can anyone please explain if below is possible :
- We have installed Netweaver 7.01 Java application server on Microsoft clustering which is working perfectly ok.
-Now we are looking at building a DR solution for the above installation using SQL Server 2008 Log-shipping. The DR site has the same MSCS configuration as the primary site.
-If we log-ship the production database and create a secondary database in "standby" or "norecovery" mode, how do we install a Passive SAP Central instance in case we want to failover from the primary to secondar ?
- We know that we have the primary database log-shipped to the secondary site and in the event of failure we can switch the roles and make secondary as primary and then perform the system copy steps on the MSCS. the drawback here is that it will take a long time to bring the system online if we perform the system copy. Our RTO is one hour only so this is not acceptable.
Question : Is there anyway we can install the Central Services and Applicaiton servers beforehand on the secondary site on the secondary log-shipped database so that in the event of failure all we do is bring the secondary database primary and then start the SAP on the secondary site ?
If yes then can anyone point me the any SAP note or documentation that has the details of how to do this.
I have already looked at 1101017, 965908 but its not clear how we can perform the installation on the JAVA stack only.
We want to implement similar to what is shows in the below diagram :
http://help.sap.com/saphelp_apo/helpdata/en/fc/33c028d58511d386ee00a0c930df15/content.htm
Appreciate if someone can assist in resolving the above query.
Thank you.
RA

Thanks Markus for your reply.
I did looked at the HA web page from SAP and configured MSCS for HA but there's no information regarding DR setup. All it says is setup a log shiping which we already know but there's no procedure to setup SAP on the DR site(Passive SAP central instance)
My original question still stands :
- Is system copy the only option that we need to perform at the DR site in the event of failure ( Assumption is that we ieve make the secondary database as primary and also sync file system for JAVA using SAN replication technologies)
- We have to achieve an RTO of 1 hour which is not possible in this case as performing system copy using MSCS HA option will take few hours to setup and test.
-The link "http://help.sap.com/saphelp_apo/helpdata/en/fc/33c028d58511d386ee00a0c930df15/content.htm" shows that we can have SAP PAssive central instance. Whats the procedure of installing this Passive instance on the secondary site so in the event of failure all we do is make the secondary database primary and bring the SAP system online(installed already - no system copy performed) and also file system is already is sync.
Thank you.
RA

SAP on MSCS and log shipping for DR

Hi Experts,
Can anyone please explain if below is possible :
- We have installed Netweaver 7.01 Java application server on Microsoft clustering which is working perfectly ok.
-Now we are looking at building a DR solution for the above installation using SQL Server 2008 Log-shipping. The DR site has the same MSCS configuration as the primary site.
-If we log-ship the production database and create a secondary database in "standby" or "norecovery" mode, how do we install a Passive SAP Central instance in case we want to failover from the primary to secondary?
- We know that we have the primary database log-shipped to the secondary site and in the event of failure we can switch the roles and make secondary as primary and then perform the system copy steps on the MSCS. the drawback here is that it will take a long time to bring the system online if we perform the system copy. Our RTO is one hour only so this is not acceptable.
Question : Is there anyway we can install the Central Services and Applicaiton servers beforehand on the secondary site on the secondary log-shipped database so that in the event of failure all we do is bring the secondary database primary and then start the SAP on the secondary site ?
If yes then can anyone point me the any SAP note or documentation that has the details of how to do this.
I have already looked at 1101017, 965908 but its not clear how we can perform the installation on the JAVA stack only.
We want to implement similar to what is shows in the below diagram :
http://help.sap.com/saphelp_apo/helpdata/en/fc/33c028d58511d386ee00a0c930df15/content.htm
Appreciate if someone can assist in resolving the above query.
Thank you.
RA

Thanks Marcus and John for your reply.
I did looked at the HA web page from SAP and configured MSCS for HA but there's no information regarding DR setup. All it says is setup a log shiping which we already know but there's no procedure to setup SAP on the DR site(Passive SAP central instance)
My original question still stands :
- Is system copy the only option that we need to perform at the DR site in the event of failure ( Assumption is that we ieve make the secondary database as primary and also sync file system for JAVA using SAN replication technologies)
- We have to achieve an RTO of 1 hour which is not possible in this case as performing system copy using MSCS HA option will take few hours to setup and test.
-The link "http://help.sap.com/saphelp_apo/helpdata/en/fc/33c028d58511d386ee00a0c930df15/content.htm" shows that we can have SAP PAssive central instance. Whats the procedure of installing this Passive instance on the secondary site so in the event of failure all we do is make the secondary database primary and bring the SAP system online(installed already - no system copy performed) and also file system is already is sync.
Thank you.
RA

SCOM 2012 R2 HA design but using SQL 2014 Standard edition

Hi All,
I want to deploy SCOM 2012r2 with a HA design (but have constraints!)
Plan is two management servers with all roles to each (fresh deployment so 2012r2 RU5)
SQL servers need to be 2014 standard edition due to licensing and cost constraints.
Design is to be split between two datacentres that are fibre connected and sub 3ms latency
Plan was to have a Management Server and a SQL server at each location.
Each location has a dedicated SAN but SAN replication is not an option.
What are my SQL options for the DB??
AlwaysOn FCI is not preferable as it gives a single point of failure due to shared storage requirement.
I read Database mirroring is not a supported config but this isn't Microsoft direct info just blog post, is this correct.
Which leaves me with log shipping, is this supported and the best option??
Would be great to get advice on what works well in the field with a contraint of having to use SQL Standard edition!
Thanks
James

Hi,
No additional licenses are needed for management servers or SQL Server technology.
System Center 2012 R2 licensing
http://www.microsoft.com/en-us/Licensing/product-licensing/system-center-2012-r2.aspx#tab=2
Reference:
SCOM 2012 R2 HA options with Server 2012 and SQL 2012
https://gallery.technet.microsoft.com/SCOM-2012-R2-HA-options-540beb95
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

Interconnecting MDS 9148 with 2 different Fiber Providers

Hi
I would like discuss the following issue :
We have 2 HP SAN EVA 8400 ( one at the production site and one at our Disaster Recovery site ) replicating using a fiber channel service from ( 2* FC dark fiber from PROVIDER A )
They are linked together with 4 Cisco MDS 9148 Multilayer Fabric Switch (2 fabric ).
We have recently purchased a new fiber service ( 2* 1Gb FC managed service from PROVIDER B) in order to create a port channel with the 2 running ones and we have some problem.
We disconnected the PROVIDER A FC ( running for 10 years now ) and left the SAN replication during a couple of days running with the new PROVIDER B 1 Gb FC to make sure the link was stable and we had no issue.
Then we tried to connect the 2 FC together from the 2 providers and tried to create a Port channel.
However we discovered that to create a PortChannel, interfaces must have the same configurations ( speed, mode, rate )
In our case , the interface FC 1/1 using PROVIDER A link is running at 4 Gb and the interface FC 1/2 using PROVIDER B is running at 1 Gb
PROVIDER A dark fiber
PROVIDER B fiber managed service
fc1/1 is trunking
    Hardware is Fibre Channel, SFP is CWDM-1550
    Port WWN is 20:01:00:05:9b:72:b1:60
    Peer port WWN is 20:01:00:05:9b:72:b1:a0
    Admin port mode is E, trunk mode is on
    snmp link state traps are enabled
    Port mode is TE
    Port vsan is 1
    Speed is 4 Gbps
    Rate mode is dedicated
    Transmit B2B Credit is 32
    Receive B2B Credit is 32
    B2B State Change Number is 14
    Receive data field Size is 2112
    Beacon is turned off
    Trunk vsans (admin allowed and active) (1)
    Trunk vsans (up)                       (1)
    Trunk vsans (isolated)                 ()
    Trunk vsans (initializing)             ()
    5 minutes input rate 4416 bits/sec, 552 bytes/sec, 6 frames/sec
    5 minutes output rate 91616 bits/sec, 11452 bytes/sec, 11 frames/sec
      51537358280 frames input, 50955393731852 bytes
        0 discards, 0 errors
        0 CRC, 0 unknown class
        0 too long, 0 too short
      223256095067 frames output, 408667816663528 bytes
        32 discards, 0 errors
      34 input OLS, 36 LRR, 51 NOS, 0 loop inits
      53 output OLS, 35 LRR, 45 NOS, 0 loop inits
      32 receive B2B credit remaining
      32 transmit B2B credit remaining
      28 low priority transmit B2B credit remaining
    Interface last changed at Fri Dec 14 17:02:48 2012
fc1/2 is trunking
    Hardware is Fibre Channel, SFP is short wave laser w/o OFC (SN)
    Port WWN is 20:02:00:05:9b:72:b1:60
    Peer port WWN is 20:02:00:05:9b:72:b1:a0
    Admin port mode is E, trunk mode is on
    snmp link state traps are enabled
    Port mode is TE
    Port vsan is 1
    Speed is 1 Gbps
    Rate mode is dedicated
    Transmit B2B Credit is 32
    Receive B2B Credit is 32
    B2B State Change Number is 14
    Receive data field Size is 2112
    Beacon is turned off
    Trunk vsans (admin allowed and active) (1)
    Trunk vsans (up)                       (1)
    Trunk vsans (isolated)                 ()
    Trunk vsans (initializing)             ()
    5 minutes input rate 48 bits/sec, 6 bytes/sec, 0 frames/sec
    5 minutes output rate 48 bits/sec, 6 bytes/sec, 0 frames/sec
      39496053 frames input, 2696451760 bytes
        0 discards, 0 errors
        0 CRC, 0 unknown class
        0 too long, 0 too short
      167653989 frames output, 230540944084 bytes
        70 discards, 0 errors
      40377 input OLS, 345 LRR, 4248 NOS, 0 loop inits
      5186 output OLS, 1154 LRR, 39568 NOS, 0 loop inits
      32 receive B2B credit remaining
      32 transmit B2B credit remaining
      28 low priority transmit B2B credit remaining
    Interface last changed at Fri Dec 14 16:50:42 2012
So we tried to force the FC 1/1 to run at 1 Gb ( same speed as FC 1/2 ) to create the PortChannel, by doing the basic command on the interface : Switchport speed 1000
Since that , our SAN is logging every 10/15 minutes the following errors :
---------- Problem Found: CUST: CA informational: EVA8400_LIVE: Write resources on the inter site link have been reduced. at Fri 14 Dec 2012 17:21:04 GMT+01:00 ----------
---------- Problem Found: CUST: CA warning: EVA8400_DR: Excessive out of order message rate on the inter site link. at Fri 14 Dec 2012 17:27:04 GMT+01:00 ----------
---------- Problem Found: CUST: CA warning: EVA8400_DR: Excessive data exchange retry rate on the inter site link. at Fri 14 Dec 2012 17:41:34 GMT+01:00 ----------
---------- Problem Found: CUST: CA warning: EVA8400_LIVE: Excessive data exchange retry rate on the inter site link. at Fri 14 Dec 2012 17:41:49 GMT+01:00 ----------
We have the following questions :
Have you already seen that kind of situation ?
Is there a best practice to reduce the interface speed in order to create the PortChannel with identical interface setup ?
Your help and advice would be much appreciated.
Regards

the RTT delay by each link is different and this is causing packets to arrive out of order.
not sure if port channeling between two different links or different characteristics is good practive.

Creating standby database using data guard.

Current Env:
Oracle 11.2.0.1
ASM
Size 1.7T and growing.
I'm rebuilding a standby database and need to use rman because of a few factors. In the past, I did a file copy create a standby control file config init.ora and it always worked.
We have a database and had the stanby build; but someone issued a flashback and corrupted the standby database.
Because of the size 1.7T and growing and we are now using ASM.
My research is only showing building standby through rman using dupicate database command.
I would like to copy the cold backup to a external drive and ship it to the standby site where I'll do the restore. This is because of time and bandwith required to rebuild the standby will interfere with operaitions for the period the files are being copied.
So what would be the high level steps.
1) get the cold backup
2) create the standby control file
3) ship the data via corrier
4) restore the database
5) and this is where i'm not sure. recover the standby control file - but during the restore of the database the "normal" control file will open and perhaps do a checkpoint. therefore the standby controlfile will be usless.
6) recover the standby database.
Has anyone accomplished this?
As much specifics will be helpful. This system is operational and needs to be done right the first time.
thanks,
-Rob

Thank you.
1) I'm going to off load the cold backup to an external drive and have a courier take it to the DR site.
Why, we are replicating the SAN over to the DR site. When SAN replication backs up Oracle becomes non-responsive. Therefore; sending the data over the pipe is not an option for the standby rebuild. Yea' that's the easy way to do it. But this system is operational and critical to operations; so we will not risk saturating the pipe for any period of time. The pipe got saturated one time and it was not pretty.
2) I'm running the test in my lab to make sure I can create the standby database using the cold backup and rman.
3) In the past it was easy; I got a cold backup of the data files using the same ksh scripts that have been working for 20 years. Copy the files over to the standby site, and put it into managed recovery. This technique has been working fine sense Oracle 8i days. ASM through a huge monkey wrench in the ksh script backup and now I'm forced to use rman. Hey, I'm told it's an okay product but when it comes to backups I never get fancy; that just makes things more complicated. Okay I wont complain about asm anymore, i guess there is an advantage in there somewhere.
-Rob

Looking for comment on disaster recovery plan

Looking for some comment on where we are and where we’re planning on going with our Continuity of Operations / Disaster Recovery plan.
Current setup is Oracle 10.2.0.2.0 on HP-UX Itanium 64-bit. OAS / Forms 9i on a separate HP-UX Itanium box. We do not have control over the version of Oracle or the hardware. I am pushing the powers that be on upgrading to 10.2.0.4, but am not holding my breath.
Basic backup is threefold. DB is in archivelog mode. RMAN full backup is taken weekly. Incremental backup taken daily. These backups are to disk. In addition, a daily full-system backup (to tape) is done with the db shut down, providing a daily cold backup as well as backup of the online backups. Also daily exports – full and schema specific.
All db files are on an HP SAN unit. SAN replication software is used to mirror all i/o to a similar unit located at a sister site. Likewise, they replicate their SAN to ours. Each site has a pair of backup servers to be used by the other site if needed. Sister site has already tested loading our backup servers, mounting the mirror of their SAN, and starting the db.
Since sister site is a couple of hours away and crosses major network boundaries, management would like to also put up a DataGuard standby at a facility only 30 minutes away and within our own network. Plan is to host that on duplicate HP servers, but disk would be on a NAS instead of a SAN.
I have managed a DataGuard setup, but did not create/configure it, so am now digging into the docs, starting with the DataGuard Concepts. I’ve never worked with NAS and am not clear on how it differs from SAN, and what the implications are.
I'm looking for any comment, especially any red flags, on what I’ve described.

Satish Kandi wrote:
Not an expert comment on your setup but just the thoughts that came to my mind while reading this...
1. What is the setup for backup preservation? Is it in one of the servers only? Is the backup also replicated?Belt and suspenders. The backup location on disk is part of what gets mirrored to the sister SAN. Plus, the nightly system backup to tape picks it up as well.
2. What about OAS/Forms 9i backup? You have not mentioned anything about that.That is also mirrored to the sister SAN.
3. What is the archive log generation frequency? Or how much data loss can you afford?A typical day will see one or two dozen archivelog files.
>
In addition, a daily full-system backup (to tape) is done with the db shut down, providing a daily cold backup as well as backup of the online backupsLucky you :-) but I don't see a need for this with the levels of backup that you have (especially with RMAN weekly backup and daily archive log backup). No, no need, but it does give us another layer at no real cost. This cold backup is really just a byproduct of a daily full system shutdown and backup. We have a high tolerance for system down time, but low tolerance for data loss.

SQL Server 2012 Multi-Site clustering with 2 nodes for HA and DR

Usually we setup 2 Node Prod cluster for Local HA and 1 or 2 Nodes in other data centre for DR
Given that we have an option to setup multi-site / multi-subnet clustering from SQL 2008 R2/2012. I am planning to use just 2 nodes, 1 in prod data centre and 1 in DR data centre with 2 or 3 instances. This will act as both HA and DR solution.
I would like to know if this solution is good, and any disadvantages, any best practices, etc.? By implementing this I can save some cost on physical servers.
Following will be configured:
* Will be using different subnets, quorum on different server with "Node and File Share Majority"
* All virtual IPs will be registered for virtual name, and Subnetdelay, Subnet threshold will be modified accordingly
* All nodes on same domain
* Use SAN Disk with replication to DR site

SQL 2008 R2 doesn't support multi-subnet clustering. You would still need 3rd party component like VLAN and Disk Replication. SQL 2012 is the first version to support multi-subnet clustering without using VLAN. you would still need disk replication hardware/software.
Taken from my book
Since nodes are often located in two different data centers at geographically dispersed locations, there is no shared storage between the nodes in a multi-site cluster. Clustering across two different data centers provides a higher level of availability and
protection at the storage level as we have more than a single copy of the data.
For SAN replication technology implemented in such clusters, the main activity is to keep data replicated between the sites. Typically, if we have nodes on two different sites, we would have two different network infrastructures and the nodes would be in
different subnets. In such cases, if we are on a SQL Server version before 2012, we need to use third party VLAN (Virtual LAN) technology so that one IP address travels between two sites. This is called wide-IP. Companies hesitate with this solution because
of the need to buy a third party solution to deploy the VLAN. Using VLAN technology means the same IP address would failover to the remote site in case of a local site disaster. Network administration might consider this as an overhead to maintenance and an
extra piece of the networking component that needs to be secure.
With SQL Server 2012 we do not need to use stretch VLAN technology but SAN replication is still needed for multi-site clustering. The OS version for this can be from Windows Server 2008 R2 and above. In this deployment, we can have a SQL virtual network
name having an “OR” dependency on two different IP addresses. One address would be representing each subnet. With the “OR” dependency, if IP1 or IP2 is online we just use the network name. This is one of the Enterprise Editions only features.
Other option which you can think of, without using 3rd party solutions would be AlwaysOn Availability Group. I have written details about it in my book.
Balmukund Lakhani | Please mark solved if I've answered your question, vote for it as helpful to help other users find a solution quicker
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