Russia – Ukraine war – 06/05/22(101/120 days) 90 days is culminating point for Russian phase2 strategy of capturing Donbas.

Status

Overall 20% land lost by Ukraine. 80% in Luhansk and 50% in Donetsk. More damage happening to Ukraine due to lack of long range weapons. US and allies now trying to balance the war with long range weapons. War is now concentrated over Severodonetsk. Remaining major Luhansk city. The winning strategy in this war is not on how many weapons or soldiers lost, its how much land and infrastructure you lost.

Possible Outcomes(More likely to less likely)

  1. Russia may decide to stop the war after capturing Severodonetsk and decide to hold on the 20%. War will continue under the hood like how it was from 2014 to 2021. Once the long range weapons are delivered to Ukraine, Ukraine will have the upper hand to create a stalemate in Donbas. Next possible solution to end the war for Russia is threatening to the use of tactical nuclear weapons or chinese invasion on Taiwan. As all of us knows US cannot share nuclear weapons to Ukraine.
  2. Putin thrown out. I doubt it will not happen as foreign media claims. Putin is converting the economic sanctions to gains. More over world and Russian people knows the involvement of NATO in the war and the period of 1990 – 2008 how some countries were destroyed by NATO. Majority of Russians may consider Putin as their savior.
  3. Phase 2 to continue for few more months/years and the entire Donbas is captured. Less likely. I doubt Russia will repeat Afghanistan in Ukraine.

Other possible areas of development

  1. Ukraine may launch a full offense on Kherson.

What needs to be filtered from media

Media shows only Ukraine hitting with pin point accuracy. Russia using conventional ways. What we see is only one side of the war. Most of the Russian media propoganda remains inside Russia. The way Russia attack is to cover all 3 sides and capture the supply lines and then capture them as a whole. Since technology is advanced Ukraine soldiers are able to escape on timely manner.
Within one month of war the propoganda was talking about Russia out of ammunitions. Russia is just capturing Ukraine ammunitions and handing over to soldiers in Donbas and not deperate on ammunitions. I see the Russian strategy of leaving Kiev and holding on to Donbas is working well. The Russian declaration of ending the war is nearby.

Power Shield (PS) and Power Loss Protection (PLP)

Most of the enterprise SSD support PLP and PS features. SSD will cache the data in DRAM to allow faster writes. Then it will write to the flash. PS technology will make sure controller will stop writing to the NND flash or DRAM when there is a power loss(voltage drop) with the help of internal voltage detection circuit. This way NAND will be intact only the data in DRAM will be lost. PLP will assist to flash the DRAM to NAND and there by make it write protect when certain voltage level it will reach. It increases the time to make sure most of the contents are written.

Source: Power Shield (PS) – Transcend Information, Inc.

Source: What is Power Loss Protection

Understanding write-through, write-around and write-back caching (with Python)

Write-through is used when the data is written to both cache and persistent storage. Useful for less intensive writes and read intensive applications.

Write-back is used when data is written to cache and a background offload will processor or application will be used to copy the data from the cache to persistent storage.  IO will be acknowledged on the cache write itself. low read latency and high throughput for write intensive applications. Cache may need to be powered with an alternate source or cache to be duplicated to avoid data loss on power loss or cache failure.

Write-around is used when cache is bypassed and directly written to the persistent data. Less use of cache and most time cache miss. So higher latency.

 

Source: Understanding write-through, write-around and write-back caching (with Python)

Russia – Ukraine war – 04/18/22(54/120 days) 90 days is culminating point for Russian new strategy of capturing Donbas.

Russia still have the opportunity to use tactical nuclear weapons. I still believe there is something big to happen. Like Taiwan invasion or nuclear or chemical weapon use. There will be a major twist to war were Ukraine will blame on US for backstabbing towards the end of the war.

For Putin, meeting his goals is his ultimate objectives. He don’t care how many equipment’s destroyed or troops killed. For Russia its show off power, control of the region and clearing the arsenal to make way for the new are the priorities in the war. For US its a business in the name of protection they right now might have got lot of orders from other Russian neighbors including Japan. Why didn’t US asked its allies to send patriots instead of S300? If it gets destroyed, their business plans will get impacted. Ukraine is the scapegoat of this war. So if Russia wants to end the war, they can either create a new flash point which is of more interest for US(e.g:- Taiwan) or bring the war to abruptly end via tactical nuclear weapon use. Their priority is Donbas and securing Crimea permanently. Once that is achieved only we will know what are their phase 3 plans. Since Ukraine lost a lot of territory Russia is already into a long term war where they need to change the strategy again after the phase 2 culminating point (~90 days). So they can end the war with a strategy which will end the US interests in Ukraine. The threats from Russia to baltic area is just a mockery. Even if Finland and Sweden joins NATO, Russia will not attack them as they already have nuclear weapons in baltic area. Finland/Sweden cannot be compared to Ukraine w.r.t Russia’s interest. At least my prediction on culminating point for 40 days went correct as Russia changed the strategy in ~38 days instead of a stalemate or more loss than advantages. Russia moved out of Kyiv and changed strategy on Donbas only. The recent disclosure from the Chechniyan leader points that Russia has intentions to get Kyiv and remaining part also conquered. So a phase 3 is also expected.

“Russia shot down a cargo plane carrying foreign aid weapons sent to Ukraine over Odesha” That’s the power of S-400. Striking at enemy aircraft from your own controlled territory. Possibly Moskva sunk by a foreign made anit-ship missile than Neptune. If it was Neptune they don’t need 50 days to try.

Russia – Ukraine war – 04/06/22(42/120 days)

The war is going to a critical phase. Russia retreated after the culminating point(40 days). There is a change in strategy to concentrate on offense in Donbas while defending in the south. The crux of the Russia-Ukraine war is Donbas. NATO was providing lot of weapons from 2014, which Ukraine was using in Donbas. I guess Russia is now concerned about defending the south and trying to take full control of Donbas. The Russian retreat still looks fishy. There is something more damage planned on Kyiv. This may cause the war to enter more deadly phase with NATO getting more weapons to Ukraine and hitting Russian position inside Russia. Russia can create a fake chemical attack and nuke the Kyiv to bring the war under their control and to make NATO go one step back.

Russia – Ukraine war – 04/04/22(40/120 days)

Last week Russia said they will lessen the attacks on Kyiv and Chernihiv.
This week Russian troops retreat, so it was a deception attack or to frighten Ukraine. They could have done heavy bombing on Kyiv, but the attacks were less other than some show off.
There was genocide on Bucha area. Most I believe due to heavy fighting. There are instances of purposeful killing civilians too which Russia denies. Possibly they might have challenged the Russian soldiers.
Russia has setup mines to make the recovery more difficult to Ukraine.
To me Russia has changed its strategy on Kyiv. I suspect they are plannig for more devastating attack as one of their major goal of removing Zelensky is not achieved. I suspect with Russian forces retreated, the Kyiv is wide open for a chemical, biological or tactical nuclear strike.
Russia knows they need to sacrifice a lot of troops and equipment’s for capturing Kyiv. So I presume this is a tactical move by Russia. A potential Russian strike on Russian army or city with chemical weapons by Russia, claiming Ukraine attack and a nuclear response strike is a possible chance to end the war in favor of Russia.

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